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Finding the Fourth Proportional to 553,264.80, 829,897.20 and 343,312.80

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Solution

The fourth proportional to 553,264.80, 829,897.20 and 343,312.80 is: 514,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,264.80 : 829,897.20 = 343,312.80 : x
  2. Step 2: Convert to fraction form
    553,264.80/829,897.20 = 343,312.80/x
  3. Step 3: Cross multiply
    553,264.80x = 829,897.20 × 343,312.80
  4. Step 4: Simplify right side
    553,264.80x = 284,914,331,444.16
  5. Step 5: Solve for x
    x = 284,914,331,444.16/553,264.80
  6. Step 6: Final answer
    x = 514,969.20

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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.