Home / 900,960.16-1,243,336.08-498,589.60

Finding the Fourth Proportional to 900,960.16, 1,243,336.08 and 498,589.60

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Solution

The fourth proportional to 900,960.16, 1,243,336.08 and 498,589.60 is: 688,059.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,960.16 : 1,243,336.08 = 498,589.60 : x
  2. Step 2: Convert to fraction form
    900,960.16/1,243,336.08 = 498,589.60/x
  3. Step 3: Cross multiply
    900,960.16x = 1,243,336.08 × 498,589.60
  4. Step 4: Simplify right side
    900,960.16x = 619,914,438,792.77
  5. Step 5: Solve for x
    x = 619,914,438,792.77/900,960.16
  6. Step 6: Final answer
    x = 688,059.77

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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.