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Finding the Fourth Proportional to 614,428.85, 847,994.81 and 372,672.40

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Solution

The fourth proportional to 614,428.85, 847,994.81 and 372,672.40 is: 514,338.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,428.85 : 847,994.81 = 372,672.40 : x
  2. Step 2: Convert to fraction form
    614,428.85/847,994.81 = 372,672.40/x
  3. Step 3: Cross multiply
    614,428.85x = 847,994.81 × 372,672.40
  4. Step 4: Simplify right side
    614,428.85x = 316,024,261,030.24
  5. Step 5: Solve for x
    x = 316,024,261,030.24/614,428.85
  6. Step 6: Final answer
    x = 514,338.26

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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.