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Finding the Fourth Proportional to 472,916.60, 709,461.30 and 192,462.20

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Solution

The fourth proportional to 472,916.60, 709,461.30 and 192,462.20 is: 288,728.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,916.60 : 709,461.30 = 192,462.20 : x
  2. Step 2: Convert to fraction form
    472,916.60/709,461.30 = 192,462.20/x
  3. Step 3: Cross multiply
    472,916.60x = 709,461.30 × 192,462.20
  4. Step 4: Simplify right side
    472,916.60x = 136,544,482,612.86
  5. Step 5: Solve for x
    x = 136,544,482,612.86/472,916.60
  6. Step 6: Final answer
    x = 288,728.46

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1.5x scale

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.