Home / 724,637.61-1,086,384.72-457,835.76

Finding the Fourth Proportional to 724,637.61, 1,086,384.72 and 457,835.76

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Solution

The fourth proportional to 724,637.61, 1,086,384.72 and 457,835.76 is: 686,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,637.61 : 1,086,384.72 = 457,835.76 : x
  2. Step 2: Convert to fraction form
    724,637.61/1,086,384.72 = 457,835.76/x
  3. Step 3: Cross multiply
    724,637.61x = 1,086,384.72 × 457,835.76
  4. Step 4: Simplify right side
    724,637.61x = 497,385,773,933.59
  5. Step 5: Solve for x
    x = 497,385,773,933.59/724,637.61
  6. Step 6: Final answer
    x = 686,392.44

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1.5x scale

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.