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Finding the Fourth Proportional to 478,818.04, 660,776.23 and 261,026.84

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Solution

The fourth proportional to 478,818.04, 660,776.23 and 261,026.84 is: 360,221.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,818.04 : 660,776.23 = 261,026.84 : x
  2. Step 2: Convert to fraction form
    478,818.04/660,776.23 = 261,026.84/x
  3. Step 3: Cross multiply
    478,818.04x = 660,776.23 × 261,026.84
  4. Step 4: Simplify right side
    478,818.04x = 172,480,332,313.02
  5. Step 5: Solve for x
    x = 172,480,332,313.02/478,818.04
  6. Step 6: Final answer
    x = 360,221.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.