Home / 771,462.09-1,064,387.39-499,098.56

Finding the Fourth Proportional to 771,462.09, 1,064,387.39 and 499,098.56

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Solution

The fourth proportional to 771,462.09, 1,064,387.39 and 499,098.56 is: 688,607.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,462.09 : 1,064,387.39 = 499,098.56 : x
  2. Step 2: Convert to fraction form
    771,462.09/1,064,387.39 = 499,098.56/x
  3. Step 3: Cross multiply
    771,462.09x = 1,064,387.39 × 499,098.56
  4. Step 4: Simplify right side
    771,462.09x = 531,234,205,813.73
  5. Step 5: Solve for x
    x = 531,234,205,813.73/771,462.09
  6. Step 6: Final answer
    x = 688,607.01

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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.