Home / 389,335.60-584,003.40-239,088.70

Finding the Fourth Proportional to 389,335.60, 584,003.40 and 239,088.70

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Solution

The fourth proportional to 389,335.60, 584,003.40 and 239,088.70 is: 358,633.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,335.60 : 584,003.40 = 239,088.70 : x
  2. Step 2: Convert to fraction form
    389,335.60/584,003.40 = 239,088.70/x
  3. Step 3: Cross multiply
    389,335.60x = 584,003.40 × 239,088.70
  4. Step 4: Simplify right side
    389,335.60x = 139,628,613,701.58
  5. Step 5: Solve for x
    x = 139,628,613,701.58/389,335.60
  6. Step 6: Final answer
    x = 358,633.05

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Why These Related Problems?

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