Home / 744,005.46-1,026,807.76-421,680.96

Finding the Fourth Proportional to 744,005.46, 1,026,807.76 and 421,680.96

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Solution

The fourth proportional to 744,005.46, 1,026,807.76 and 421,680.96 is: 581,965.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,005.46 : 1,026,807.76 = 421,680.96 : x
  2. Step 2: Convert to fraction form
    744,005.46/1,026,807.76 = 421,680.96/x
  3. Step 3: Cross multiply
    744,005.46x = 1,026,807.76 × 421,680.96
  4. Step 4: Simplify right side
    744,005.46x = 432,985,281,972.25
  5. Step 5: Solve for x
    x = 432,985,281,972.25/744,005.46
  6. Step 6: Final answer
    x = 581,965.19

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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.