Home / 890,999.10-1,336,498.65-417,732.30

Finding the Fourth Proportional to 890,999.10, 1,336,498.65 and 417,732.30

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Solution

The fourth proportional to 890,999.10, 1,336,498.65 and 417,732.30 is: 626,598.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,999.10 : 1,336,498.65 = 417,732.30 : x
  2. Step 2: Convert to fraction form
    890,999.10/1,336,498.65 = 417,732.30/x
  3. Step 3: Cross multiply
    890,999.10x = 1,336,498.65 × 417,732.30
  4. Step 4: Simplify right side
    890,999.10x = 558,298,655,011.40
  5. Step 5: Solve for x
    x = 558,298,655,011.40/890,999.10
  6. Step 6: Final answer
    x = 626,598.45

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Double scale
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Similar ratio
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1.5x scale

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.