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Finding the Fourth Proportional to 434,045.70, 650,849.85 and 256,607.10

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Solution

The fourth proportional to 434,045.70, 650,849.85 and 256,607.10 is: 384,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,045.70 : 650,849.85 = 256,607.10 : x
  2. Step 2: Convert to fraction form
    434,045.70/650,849.85 = 256,607.10/x
  3. Step 3: Cross multiply
    434,045.70x = 650,849.85 × 256,607.10
  4. Step 4: Simplify right side
    434,045.70x = 167,012,692,543.94
  5. Step 5: Solve for x
    x = 167,012,692,543.94/434,045.70
  6. Step 6: Final answer
    x = 384,781.35

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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.