Home / 877,200.80-1,316,238.60-498,412.40

Finding the Fourth Proportional to 877,200.80, 1,316,238.60 and 498,412.40

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Solution

The fourth proportional to 877,200.80, 1,316,238.60 and 498,412.40 is: 747,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,200.80 : 1,316,238.60 = 498,412.40 : x
  2. Step 2: Convert to fraction form
    877,200.80/1,316,238.60 = 498,412.40/x
  3. Step 3: Cross multiply
    877,200.80x = 1,316,238.60 × 498,412.40
  4. Step 4: Simplify right side
    877,200.80x = 656,029,639,598.64
  5. Step 5: Solve for x
    x = 656,029,639,598.64/877,200.80
  6. Step 6: Final answer
    x = 747,867.12

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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.