Home / 1,425,586.56-2,138,699.02-478,931.46

Finding the Fourth Proportional to 1,425,586.56, 2,138,699.02 and 478,931.46

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Solution

The fourth proportional to 1,425,586.56, 2,138,699.02 and 478,931.46 is: 718,504.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,586.56 : 2,138,699.02 = 478,931.46 : x
  2. Step 2: Convert to fraction form
    1,425,586.56/2,138,699.02 = 478,931.46/x
  3. Step 3: Cross multiply
    1,425,586.56x = 2,138,699.02 × 478,931.46
  4. Step 4: Simplify right side
    1,425,586.56x = 1,024,290,244,149.17
  5. Step 5: Solve for x
    x = 1,024,290,244,149.17/1,425,586.56
  6. Step 6: Final answer
    x = 718,504.42

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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.