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Finding the Fourth Proportional to 638,254.08, 956,790.63 and 357,574.50

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Solution

The fourth proportional to 638,254.08, 956,790.63 and 357,574.50 is: 536,030.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,254.08 : 956,790.63 = 357,574.50 : x
  2. Step 2: Convert to fraction form
    638,254.08/956,790.63 = 357,574.50/x
  3. Step 3: Cross multiply
    638,254.08x = 956,790.63 × 357,574.50
  4. Step 4: Simplify right side
    638,254.08x = 342,123,931,126.94
  5. Step 5: Solve for x
    x = 342,123,931,126.94/638,254.08
  6. Step 6: Final answer
    x = 536,030.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.