Home / 986,739.76-1,480,700.12-425,774.26

Finding the Fourth Proportional to 986,739.76, 1,480,700.12 and 425,774.26

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Solution

The fourth proportional to 986,739.76, 1,480,700.12 and 425,774.26 is: 638,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,739.76 : 1,480,700.12 = 425,774.26 : x
  2. Step 2: Convert to fraction form
    986,739.76/1,480,700.12 = 425,774.26/x
  3. Step 3: Cross multiply
    986,739.76x = 1,480,700.12 × 425,774.26
  4. Step 4: Simplify right side
    986,739.76x = 630,443,997,874.91
  5. Step 5: Solve for x
    x = 630,443,997,874.91/986,739.76
  6. Step 6: Final answer
    x = 638,916.18

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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.