Home / 648,377.06-893,689.29-433,438.70

Finding the Fourth Proportional to 648,377.06, 893,689.29 and 433,438.70

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Solution

The fourth proportional to 648,377.06, 893,689.29 and 433,438.70 is: 597,429.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,377.06 : 893,689.29 = 433,438.70 : x
  2. Step 2: Convert to fraction form
    648,377.06/893,689.29 = 433,438.70/x
  3. Step 3: Cross multiply
    648,377.06x = 893,689.29 × 433,438.70
  4. Step 4: Simplify right side
    648,377.06x = 387,359,524,061.52
  5. Step 5: Solve for x
    x = 387,359,524,061.52/648,377.06
  6. Step 6: Final answer
    x = 597,429.41

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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.