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Finding the Fourth Proportional to 573,461.78, 791,427.66 and 315,384.19

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Solution

The fourth proportional to 573,461.78, 791,427.66 and 315,384.19 is: 435,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,461.78 : 791,427.66 = 315,384.19 : x
  2. Step 2: Convert to fraction form
    573,461.78/791,427.66 = 315,384.19/x
  3. Step 3: Cross multiply
    573,461.78x = 791,427.66 × 315,384.19
  4. Step 4: Simplify right side
    573,461.78x = 249,603,769,514.13
  5. Step 5: Solve for x
    x = 249,603,769,514.13/573,461.78
  6. Step 6: Final answer
    x = 435,257.90

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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.