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Finding the Fourth Proportional to 674,436.48, 930,741.12 and 372,649.92

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Solution

The fourth proportional to 674,436.48, 930,741.12 and 372,649.92 is: 514,267.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,436.48 : 930,741.12 = 372,649.92 : x
  2. Step 2: Convert to fraction form
    674,436.48/930,741.12 = 372,649.92/x
  3. Step 3: Cross multiply
    674,436.48x = 930,741.12 × 372,649.92
  4. Step 4: Simplify right side
    674,436.48x = 346,840,603,908.71
  5. Step 5: Solve for x
    x = 346,840,603,908.71/674,436.48
  6. Step 6: Final answer
    x = 514,267.26

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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.