Home / 688,214.40-1,031,337.45-477,606.30

Finding the Fourth Proportional to 688,214.40, 1,031,337.45 and 477,606.30

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Solution

The fourth proportional to 688,214.40, 1,031,337.45 and 477,606.30 is: 715,726.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,214.40 : 1,031,337.45 = 477,606.30 : x
  2. Step 2: Convert to fraction form
    688,214.40/1,031,337.45 = 477,606.30/x
  3. Step 3: Cross multiply
    688,214.40x = 1,031,337.45 × 477,606.30
  4. Step 4: Simplify right side
    688,214.40x = 492,573,263,545.94
  5. Step 5: Solve for x
    x = 492,573,263,545.94/688,214.40
  6. Step 6: Final answer
    x = 715,726.47

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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.