Home / 743,909.18-1,026,604.87-404,384.72

Finding the Fourth Proportional to 743,909.18, 1,026,604.87 and 404,384.72

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Solution

The fourth proportional to 743,909.18, 1,026,604.87 and 404,384.72 is: 558,056.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,909.18 : 1,026,604.87 = 404,384.72 : x
  2. Step 2: Convert to fraction form
    743,909.18/1,026,604.87 = 404,384.72/x
  3. Step 3: Cross multiply
    743,909.18x = 1,026,604.87 × 404,384.72
  4. Step 4: Simplify right side
    743,909.18x = 415,143,316,761.60
  5. Step 5: Solve for x
    x = 415,143,316,761.60/743,909.18
  6. Step 6: Final answer
    x = 558,056.45

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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.