Home / 711,338.76-1,067,002.47-290,319.39

Finding the Fourth Proportional to 711,338.76, 1,067,002.47 and 290,319.39

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Solution

The fourth proportional to 711,338.76, 1,067,002.47 and 290,319.39 is: 435,476.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,338.76 : 1,067,002.47 = 290,319.39 : x
  2. Step 2: Convert to fraction form
    711,338.76/1,067,002.47 = 290,319.39/x
  3. Step 3: Cross multiply
    711,338.76x = 1,067,002.47 × 290,319.39
  4. Step 4: Simplify right side
    711,338.76x = 309,771,506,218.89
  5. Step 5: Solve for x
    x = 309,771,506,218.89/711,338.76
  6. Step 6: Final answer
    x = 435,476.77

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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.