Home / 860,029.65-1,186,737.78-472,781.21

Finding the Fourth Proportional to 860,029.65, 1,186,737.78 and 472,781.21

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Solution

The fourth proportional to 860,029.65, 1,186,737.78 and 472,781.21 is: 652,381.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,029.65 : 1,186,737.78 = 472,781.21 : x
  2. Step 2: Convert to fraction form
    860,029.65/1,186,737.78 = 472,781.21/x
  3. Step 3: Cross multiply
    860,029.65x = 1,186,737.78 × 472,781.21
  4. Step 4: Simplify right side
    860,029.65x = 561,067,319,420.35
  5. Step 5: Solve for x
    x = 561,067,319,420.35/860,029.65
  6. Step 6: Final answer
    x = 652,381.37

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1.5x scale

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.