Home / 545,152.77-752,221.08-303,429.15

Finding the Fourth Proportional to 545,152.77, 752,221.08 and 303,429.15

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Solution

The fourth proportional to 545,152.77, 752,221.08 and 303,429.15 is: 418,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,152.77 : 752,221.08 = 303,429.15 : x
  2. Step 2: Convert to fraction form
    545,152.77/752,221.08 = 303,429.15/x
  3. Step 3: Cross multiply
    545,152.77x = 752,221.08 × 303,429.15
  4. Step 4: Simplify right side
    545,152.77x = 228,245,802,916.48
  5. Step 5: Solve for x
    x = 228,245,802,916.48/545,152.77
  6. Step 6: Final answer
    x = 418,682.28

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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.