Home / 937,143.30-1,405,386.90-487,714.80

Finding the Fourth Proportional to 937,143.30, 1,405,386.90 and 487,714.80

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Solution

The fourth proportional to 937,143.30, 1,405,386.90 and 487,714.80 is: 731,401.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    937,143.30 : 1,405,386.90 = 487,714.80 : x
  2. Step 2: Convert to fraction form
    937,143.30/1,405,386.90 = 487,714.80/x
  3. Step 3: Cross multiply
    937,143.30x = 1,405,386.90 × 487,714.80
  4. Step 4: Simplify right side
    937,143.30x = 685,427,990,856.12
  5. Step 5: Solve for x
    x = 685,427,990,856.12/937,143.30
  6. Step 6: Final answer
    x = 731,401.47

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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.