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Finding the Fourth Proportional to 577,830.70, 867,730.20 and 379,032.40

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Solution

The fourth proportional to 577,830.70, 867,730.20 and 379,032.40 is: 569,194.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,830.70 : 867,730.20 = 379,032.40 : x
  2. Step 2: Convert to fraction form
    577,830.70/867,730.20 = 379,032.40/x
  3. Step 3: Cross multiply
    577,830.70x = 867,730.20 × 379,032.40
  4. Step 4: Simplify right side
    577,830.70x = 328,897,860,258.48
  5. Step 5: Solve for x
    x = 328,897,860,258.48/577,830.70
  6. Step 6: Final answer
    x = 569,194.16

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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.