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Finding the Fourth Proportional to 659,312.40, 989,026.88 and 359,664.24

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Solution

The fourth proportional to 659,312.40, 989,026.88 and 359,664.24 is: 539,528.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,312.40 : 989,026.88 = 359,664.24 : x
  2. Step 2: Convert to fraction form
    659,312.40/989,026.88 = 359,664.24/x
  3. Step 3: Cross multiply
    659,312.40x = 989,026.88 × 359,664.24
  4. Step 4: Simplify right side
    659,312.40x = 355,717,601,134.77
  5. Step 5: Solve for x
    x = 355,717,601,134.77/659,312.40
  6. Step 6: Final answer
    x = 539,528.15

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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.