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Finding the Fourth Proportional to 690,575.85, 953,141.72 and 464,090.13

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Solution

The fourth proportional to 690,575.85, 953,141.72 and 464,090.13 is: 640,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,575.85 : 953,141.72 = 464,090.13 : x
  2. Step 2: Convert to fraction form
    690,575.85/953,141.72 = 464,090.13/x
  3. Step 3: Cross multiply
    690,575.85x = 953,141.72 × 464,090.13
  4. Step 4: Simplify right side
    690,575.85x = 442,343,662,422.77
  5. Step 5: Solve for x
    x = 442,343,662,422.77/690,575.85
  6. Step 6: Final answer
    x = 640,543.20

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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.