Home / 747,886.32-1,031,969.21-421,182.14

Finding the Fourth Proportional to 747,886.32, 1,031,969.21 and 421,182.14

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Solution

The fourth proportional to 747,886.32, 1,031,969.21 and 421,182.14 is: 581,167.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,886.32 : 1,031,969.21 = 421,182.14 : x
  2. Step 2: Convert to fraction form
    747,886.32/1,031,969.21 = 421,182.14/x
  3. Step 3: Cross multiply
    747,886.32x = 1,031,969.21 × 421,182.14
  4. Step 4: Simplify right side
    747,886.32x = 434,646,993,016.15
  5. Step 5: Solve for x
    x = 434,646,993,016.15/747,886.32
  6. Step 6: Final answer
    x = 581,167.19

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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.