Home / 1,011,612.78-1,516,111.02-756,894.78

Finding the Fourth Proportional to 1,011,612.78, 1,516,111.02 and 756,894.78

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Solution

The fourth proportional to 1,011,612.78, 1,516,111.02 and 756,894.78 is: 1,134,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,612.78 : 1,516,111.02 = 756,894.78 : x
  2. Step 2: Convert to fraction form
    1,011,612.78/1,516,111.02 = 756,894.78/x
  3. Step 3: Cross multiply
    1,011,612.78x = 1,516,111.02 × 756,894.78
  4. Step 4: Simplify right side
    1,011,612.78x = 1,147,536,516,938.48
  5. Step 5: Solve for x
    x = 1,147,536,516,938.48/1,011,612.78
  6. Step 6: Final answer
    x = 1,134,363.40

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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.