Home / 1,386,421-2,079,631.50-499,957

Finding the Fourth Proportional to 1,386,421, 2,079,631.50 and 499,957

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Solution

The fourth proportional to 1,386,421, 2,079,631.50 and 499,957 is: 749,935.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,421 : 2,079,631.50 = 499,957 : x
  2. Step 2: Convert to fraction form
    1,386,421/2,079,631.50 = 499,957/x
  3. Step 3: Cross multiply
    1,386,421x = 2,079,631.50 × 499,957
  4. Step 4: Simplify right side
    1,386,421x = 1,039,726,325,845.50
  5. Step 5: Solve for x
    x = 1,039,726,325,845.50/1,386,421
  6. Step 6: Final answer
    x = 749,935.50

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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.