Home / 691,256.70-1,037,541.15-425,536.20

Finding the Fourth Proportional to 691,256.70, 1,037,541.15 and 425,536.20

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Solution

The fourth proportional to 691,256.70, 1,037,541.15 and 425,536.20 is: 638,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,256.70 : 1,037,541.15 = 425,536.20 : x
  2. Step 2: Convert to fraction form
    691,256.70/1,037,541.15 = 425,536.20/x
  3. Step 3: Cross multiply
    691,256.70x = 1,037,541.15 × 425,536.20
  4. Step 4: Simplify right side
    691,256.70x = 441,511,318,314.63
  5. Step 5: Solve for x
    x = 441,511,318,314.63/691,256.70
  6. Step 6: Final answer
    x = 638,708.19

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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.