Home / 525,180.24-724,707.81-310,279.55

Finding the Fourth Proportional to 525,180.24, 724,707.81 and 310,279.55

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Solution

The fourth proportional to 525,180.24, 724,707.81 and 310,279.55 is: 428,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,180.24 : 724,707.81 = 310,279.55 : x
  2. Step 2: Convert to fraction form
    525,180.24/724,707.81 = 310,279.55/x
  3. Step 3: Cross multiply
    525,180.24x = 724,707.81 × 310,279.55
  4. Step 4: Simplify right side
    525,180.24x = 224,862,009,544.75
  5. Step 5: Solve for x
    x = 224,862,009,544.75/525,180.24
  6. Step 6: Final answer
    x = 428,161.60

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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.