Home / 763,155.20-1,144,364.16-447,714.56

Finding the Fourth Proportional to 763,155.20, 1,144,364.16 and 447,714.56

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Solution

The fourth proportional to 763,155.20, 1,144,364.16 and 447,714.56 is: 671,355.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,155.20 : 1,144,364.16 = 447,714.56 : x
  2. Step 2: Convert to fraction form
    763,155.20/1,144,364.16 = 447,714.56/x
  3. Step 3: Cross multiply
    763,155.20x = 1,144,364.16 × 447,714.56
  4. Step 4: Simplify right side
    763,155.20x = 512,348,496,374.17
  5. Step 5: Solve for x
    x = 512,348,496,374.17/763,155.20
  6. Step 6: Final answer
    x = 671,355.57

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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.