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Finding the Fourth Proportional to 545,407.83, 752,660.91 and 303,693.30

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Solution

The fourth proportional to 545,407.83, 752,660.91 and 303,693.30 is: 419,095.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,407.83 : 752,660.91 = 303,693.30 : x
  2. Step 2: Convert to fraction form
    545,407.83/752,660.91 = 303,693.30/x
  3. Step 3: Cross multiply
    545,407.83x = 752,660.91 × 303,693.30
  4. Step 4: Simplify right side
    545,407.83x = 228,578,075,538.90
  5. Step 5: Solve for x
    x = 228,578,075,538.90/545,407.83
  6. Step 6: Final answer
    x = 419,095.70

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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.