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Finding the Fourth Proportional to 545,320.53, 752,347.56 and 315,752.52

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Solution

The fourth proportional to 545,320.53, 752,347.56 and 315,752.52 is: 435,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,320.53 : 752,347.56 = 315,752.52 : x
  2. Step 2: Convert to fraction form
    545,320.53/752,347.56 = 315,752.52/x
  3. Step 3: Cross multiply
    545,320.53x = 752,347.56 × 315,752.52
  4. Step 4: Simplify right side
    545,320.53x = 237,555,637,985.85
  5. Step 5: Solve for x
    x = 237,555,637,985.85/545,320.53
  6. Step 6: Final answer
    x = 435,625.70

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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.