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Finding the Fourth Proportional to 659,685.06, 910,451.24 and 369,407.16

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Solution

The fourth proportional to 659,685.06, 910,451.24 and 369,407.16 is: 509,829.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,685.06 : 910,451.24 = 369,407.16 : x
  2. Step 2: Convert to fraction form
    659,685.06/910,451.24 = 369,407.16/x
  3. Step 3: Cross multiply
    659,685.06x = 910,451.24 × 369,407.16
  4. Step 4: Simplify right side
    659,685.06x = 336,327,205,039.84
  5. Step 5: Solve for x
    x = 336,327,205,039.84/659,685.06
  6. Step 6: Final answer
    x = 509,829.96

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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.