Home / 752,970.06-1,129,123.53-353,724.30

Finding the Fourth Proportional to 752,970.06, 1,129,123.53 and 353,724.30

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Solution

The fourth proportional to 752,970.06, 1,129,123.53 and 353,724.30 is: 530,430.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,970.06 : 1,129,123.53 = 353,724.30 : x
  2. Step 2: Convert to fraction form
    752,970.06/1,129,123.53 = 353,724.30/x
  3. Step 3: Cross multiply
    752,970.06x = 1,129,123.53 × 353,724.30
  4. Step 4: Simplify right side
    752,970.06x = 399,398,430,262.78
  5. Step 5: Solve for x
    x = 399,398,430,262.78/752,970.06
  6. Step 6: Final answer
    x = 530,430.69

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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.