Home / 545,452.02-752,856.21-315,972.12

Finding the Fourth Proportional to 545,452.02, 752,856.21 and 315,972.12

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Solution

The fourth proportional to 545,452.02, 752,856.21 and 315,972.12 is: 436,118.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,452.02 : 752,856.21 = 315,972.12 : x
  2. Step 2: Convert to fraction form
    545,452.02/752,856.21 = 315,972.12/x
  3. Step 3: Cross multiply
    545,452.02x = 752,856.21 × 315,972.12
  4. Step 4: Simplify right side
    545,452.02x = 237,881,572,728.87
  5. Step 5: Solve for x
    x = 237,881,572,728.87/545,452.02
  6. Step 6: Final answer
    x = 436,118.24

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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.