Home / 525,127.08-724,643.46-310,215.72

Finding the Fourth Proportional to 525,127.08, 724,643.46 and 310,215.72

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Solution

The fourth proportional to 525,127.08, 724,643.46 and 310,215.72 is: 428,078.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,127.08 : 724,643.46 = 310,215.72 : x
  2. Step 2: Convert to fraction form
    525,127.08/724,643.46 = 310,215.72/x
  3. Step 3: Cross multiply
    525,127.08x = 724,643.46 × 310,215.72
  4. Step 4: Simplify right side
    525,127.08x = 224,795,792,687.19
  5. Step 5: Solve for x
    x = 224,795,792,687.19/525,127.08
  6. Step 6: Final answer
    x = 428,078.84

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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.