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Finding the Fourth Proportional to 478,302.89, 660,033.07 and 297,010.93

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Solution

The fourth proportional to 478,302.89, 660,033.07 and 297,010.93 is: 409,859.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,302.89 : 660,033.07 = 297,010.93 : x
  2. Step 2: Convert to fraction form
    478,302.89/660,033.07 = 297,010.93/x
  3. Step 3: Cross multiply
    478,302.89x = 660,033.07 × 297,010.93
  4. Step 4: Simplify right side
    478,302.89x = 196,037,035,951.46
  5. Step 5: Solve for x
    x = 196,037,035,951.46/478,302.89
  6. Step 6: Final answer
    x = 409,859.61

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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.