Home / 875,243.20-1,312,864.80-497,329.60

Finding the Fourth Proportional to 875,243.20, 1,312,864.80 and 497,329.60

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Solution

The fourth proportional to 875,243.20, 1,312,864.80 and 497,329.60 is: 745,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,243.20 : 1,312,864.80 = 497,329.60 : x
  2. Step 2: Convert to fraction form
    875,243.20/1,312,864.80 = 497,329.60/x
  3. Step 3: Cross multiply
    875,243.20x = 1,312,864.80 × 497,329.60
  4. Step 4: Simplify right side
    875,243.20x = 652,926,525,838.08
  5. Step 5: Solve for x
    x = 652,926,525,838.08/875,243.20
  6. Step 6: Final answer
    x = 745,994.40

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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.