Home / 586,639.81-809,145.03-538,397.02

Finding the Fourth Proportional to 586,639.81, 809,145.03 and 538,397.02

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Solution

The fourth proportional to 586,639.81, 809,145.03 and 538,397.02 is: 742,604.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,639.81 : 809,145.03 = 538,397.02 : x
  2. Step 2: Convert to fraction form
    586,639.81/809,145.03 = 538,397.02/x
  3. Step 3: Cross multiply
    586,639.81x = 809,145.03 × 538,397.02
  4. Step 4: Simplify right side
    586,639.81x = 435,641,272,899.81
  5. Step 5: Solve for x
    x = 435,641,272,899.81/586,639.81
  6. Step 6: Final answer
    x = 742,604.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.