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Finding the Fourth Proportional to 634,437.60, 875,443.20 and 362,523.12

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Solution

The fourth proportional to 634,437.60, 875,443.20 and 362,523.12 is: 500,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,437.60 : 875,443.20 = 362,523.12 : x
  2. Step 2: Convert to fraction form
    634,437.60/875,443.20 = 362,523.12/x
  3. Step 3: Cross multiply
    634,437.60x = 875,443.20 × 362,523.12
  4. Step 4: Simplify right side
    634,437.60x = 317,368,400,246.78
  5. Step 5: Solve for x
    x = 317,368,400,246.78/634,437.60
  6. Step 6: Final answer
    x = 500,235.80

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Double scale
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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.