Home / 687,790.40-1,032,463.20-530,715.20

Finding the Fourth Proportional to 687,790.40, 1,032,463.20 and 530,715.20

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Solution

The fourth proportional to 687,790.40, 1,032,463.20 and 530,715.20 is: 796,672.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,790.40 : 1,032,463.20 = 530,715.20 : x
  2. Step 2: Convert to fraction form
    687,790.40/1,032,463.20 = 530,715.20/x
  3. Step 3: Cross multiply
    687,790.40x = 1,032,463.20 × 530,715.20
  4. Step 4: Simplify right side
    687,790.40x = 547,943,913,680.64
  5. Step 5: Solve for x
    x = 547,943,913,680.64/687,790.40
  6. Step 6: Final answer
    x = 796,672.81

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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.