Home / 840,139.72-1,159,461.68-477,677.32

Finding the Fourth Proportional to 840,139.72, 1,159,461.68 and 477,677.32

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Solution

The fourth proportional to 840,139.72, 1,159,461.68 and 477,677.32 is: 659,233.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,139.72 : 1,159,461.68 = 477,677.32 : x
  2. Step 2: Convert to fraction form
    840,139.72/1,159,461.68 = 477,677.32/x
  3. Step 3: Cross multiply
    840,139.72x = 1,159,461.68 × 477,677.32
  4. Step 4: Simplify right side
    840,139.72x = 553,848,547,945.10
  5. Step 5: Solve for x
    x = 553,848,547,945.10/840,139.72
  6. Step 6: Final answer
    x = 659,233.86

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Double scale
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1.5x scale

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.