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Finding the Fourth Proportional to 604,805.40, 905,895.90 and 499,829.40

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Solution

The fourth proportional to 604,805.40, 905,895.90 and 499,829.40 is: 748,659.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,805.40 : 905,895.90 = 499,829.40 : x
  2. Step 2: Convert to fraction form
    604,805.40/905,895.90 = 499,829.40/x
  3. Step 3: Cross multiply
    604,805.40x = 905,895.90 × 499,829.40
  4. Step 4: Simplify right side
    604,805.40x = 452,793,404,159.46
  5. Step 5: Solve for x
    x = 452,793,404,159.46/604,805.40
  6. Step 6: Final answer
    x = 748,659.66

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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.