Home / 1,386,421.50-2,079,632.25-499,957.50

Finding the Fourth Proportional to 1,386,421.50, 2,079,632.25 and 499,957.50

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Solution

The fourth proportional to 1,386,421.50, 2,079,632.25 and 499,957.50 is: 749,936.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,421.50 : 2,079,632.25 = 499,957.50 : x
  2. Step 2: Convert to fraction form
    1,386,421.50/2,079,632.25 = 499,957.50/x
  3. Step 3: Cross multiply
    1,386,421.50x = 2,079,632.25 × 499,957.50
  4. Step 4: Simplify right side
    1,386,421.50x = 1,039,727,740,629.38
  5. Step 5: Solve for x
    x = 1,039,727,740,629.38/1,386,421.50
  6. Step 6: Final answer
    x = 749,936.25

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.