Home / 859,637.10-1,186,325.89-472,445.48

Finding the Fourth Proportional to 859,637.10, 1,186,325.89 and 472,445.48

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Solution

The fourth proportional to 859,637.10, 1,186,325.89 and 472,445.48 is: 651,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,637.10 : 1,186,325.89 = 472,445.48 : x
  2. Step 2: Convert to fraction form
    859,637.10/1,186,325.89 = 472,445.48/x
  3. Step 3: Cross multiply
    859,637.10x = 1,186,325.89 × 472,445.48
  4. Step 4: Simplify right side
    859,637.10x = 560,474,306,322.18
  5. Step 5: Solve for x
    x = 560,474,306,322.18/859,637.10
  6. Step 6: Final answer
    x = 651,989.43

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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.