Home / 515,427.17-773,165.05-425,302.72

Finding the Fourth Proportional to 515,427.17, 773,165.05 and 425,302.72

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Solution

The fourth proportional to 515,427.17, 773,165.05 and 425,302.72 is: 637,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,427.17 : 773,165.05 = 425,302.72 : x
  2. Step 2: Convert to fraction form
    515,427.17/773,165.05 = 425,302.72/x
  3. Step 3: Cross multiply
    515,427.17x = 773,165.05 × 425,302.72
  4. Step 4: Simplify right side
    515,427.17x = 328,829,195,777.77
  5. Step 5: Solve for x
    x = 328,829,195,777.77/515,427.17
  6. Step 6: Final answer
    x = 637,974.13

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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.