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Finding the Fourth Proportional to 521,818.24, 719,946 and 292,344.76

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Solution

The fourth proportional to 521,818.24, 719,946 and 292,344.76 is: 403,344.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,818.24 : 719,946 = 292,344.76 : x
  2. Step 2: Convert to fraction form
    521,818.24/719,946 = 292,344.76/x
  3. Step 3: Cross multiply
    521,818.24x = 719,946 × 292,344.76
  4. Step 4: Simplify right side
    521,818.24x = 210,472,440,582.96
  5. Step 5: Solve for x
    x = 210,472,440,582.96/521,818.24
  6. Step 6: Final answer
    x = 403,344.35

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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.