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Finding the Fourth Proportional to 704,033.77, 971,585.70 and 398,155.89

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Solution

The fourth proportional to 704,033.77, 971,585.70 and 398,155.89 is: 549,465.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,033.77 : 971,585.70 = 398,155.89 : x
  2. Step 2: Convert to fraction form
    704,033.77/971,585.70 = 398,155.89/x
  3. Step 3: Cross multiply
    704,033.77x = 971,585.70 × 398,155.89
  4. Step 4: Simplify right side
    704,033.77x = 386,842,568,019.59
  5. Step 5: Solve for x
    x = 386,842,568,019.59/704,033.77
  6. Step 6: Final answer
    x = 549,465.93

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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.