Home / 917,936.15-1,376,862.15-318,944.18

Finding the Fourth Proportional to 917,936.15, 1,376,862.15 and 318,944.18

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Solution

The fourth proportional to 917,936.15, 1,376,862.15 and 318,944.18 is: 478,401.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,936.15 : 1,376,862.15 = 318,944.18 : x
  2. Step 2: Convert to fraction form
    917,936.15/1,376,862.15 = 318,944.18/x
  3. Step 3: Cross multiply
    917,936.15x = 1,376,862.15 × 318,944.18
  4. Step 4: Simplify right side
    917,936.15x = 439,142,172,248.92
  5. Step 5: Solve for x
    x = 439,142,172,248.92/917,936.15
  6. Step 6: Final answer
    x = 478,401.66

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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.