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Finding the Fourth Proportional to 610,415.10, 915,622.65 and 510,687.90

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Solution

The fourth proportional to 610,415.10, 915,622.65 and 510,687.90 is: 766,031.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,415.10 : 915,622.65 = 510,687.90 : x
  2. Step 2: Convert to fraction form
    610,415.10/915,622.65 = 510,687.90/x
  3. Step 3: Cross multiply
    610,415.10x = 915,622.65 × 510,687.90
  4. Step 4: Simplify right side
    610,415.10x = 467,597,408,320.94
  5. Step 5: Solve for x
    x = 467,597,408,320.94/610,415.10
  6. Step 6: Final answer
    x = 766,031.85

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1.5x scale

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.