Home / 709,794.86-979,531.02-387,506.18

Finding the Fourth Proportional to 709,794.86, 979,531.02 and 387,506.18

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Solution

The fourth proportional to 709,794.86, 979,531.02 and 387,506.18 is: 534,766.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,794.86 : 979,531.02 = 387,506.18 : x
  2. Step 2: Convert to fraction form
    709,794.86/979,531.02 = 387,506.18/x
  3. Step 3: Cross multiply
    709,794.86x = 979,531.02 × 387,506.18
  4. Step 4: Simplify right side
    709,794.86x = 379,574,318,854.05
  5. Step 5: Solve for x
    x = 379,574,318,854.05/709,794.86
  6. Step 6: Final answer
    x = 534,766.23

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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.