Home / 916,728.19-1,265,066.87-508,834.92

Finding the Fourth Proportional to 916,728.19, 1,265,066.87 and 508,834.92

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Solution

The fourth proportional to 916,728.19, 1,265,066.87 and 508,834.92 is: 702,182.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,728.19 : 1,265,066.87 = 508,834.92 : x
  2. Step 2: Convert to fraction form
    916,728.19/1,265,066.87 = 508,834.92/x
  3. Step 3: Cross multiply
    916,728.19x = 1,265,066.87 × 508,834.92
  4. Step 4: Simplify right side
    916,728.19x = 643,710,199,591.10
  5. Step 5: Solve for x
    x = 643,710,199,591.10/916,728.19
  6. Step 6: Final answer
    x = 702,182.18

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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.