Home / 480,526.74-724,033.67-398,120.58

Finding the Fourth Proportional to 480,526.74, 724,033.67 and 398,120.58

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Solution

The fourth proportional to 480,526.74, 724,033.67 and 398,120.58 is: 599,868.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,526.74 : 724,033.67 = 398,120.58 : x
  2. Step 2: Convert to fraction form
    480,526.74/724,033.67 = 398,120.58/x
  3. Step 3: Cross multiply
    480,526.74x = 724,033.67 × 398,120.58
  4. Step 4: Simplify right side
    480,526.74x = 288,252,702,649.33
  5. Step 5: Solve for x
    x = 288,252,702,649.33/480,526.74
  6. Step 6: Final answer
    x = 599,868.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.