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Finding the Fourth Proportional to 577,829.70, 867,728.70 and 379,031.40

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Solution

The fourth proportional to 577,829.70, 867,728.70 and 379,031.40 is: 569,192.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,829.70 : 867,728.70 = 379,031.40 : x
  2. Step 2: Convert to fraction form
    577,829.70/867,728.70 = 379,031.40/x
  3. Step 3: Cross multiply
    577,829.70x = 867,728.70 × 379,031.40
  4. Step 4: Simplify right side
    577,829.70x = 328,896,423,981.18
  5. Step 5: Solve for x
    x = 328,896,423,981.18/577,829.70
  6. Step 6: Final answer
    x = 569,192.66

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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.