Home / 478,836.09-716,136.39-425,899.76

Finding the Fourth Proportional to 478,836.09, 716,136.39 and 425,899.76

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Solution

The fourth proportional to 478,836.09, 716,136.39 and 425,899.76 is: 636,966.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,836.09 : 716,136.39 = 425,899.76 : x
  2. Step 2: Convert to fraction form
    478,836.09/716,136.39 = 425,899.76/x
  3. Step 3: Cross multiply
    478,836.09x = 716,136.39 × 425,899.76
  4. Step 4: Simplify right side
    478,836.09x = 305,002,313,047.59
  5. Step 5: Solve for x
    x = 305,002,313,047.59/478,836.09
  6. Step 6: Final answer
    x = 636,966.01

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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.