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Finding the Fourth Proportional to 876,875.60, 1,315,313.40 and 451,722.80

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Solution

The fourth proportional to 876,875.60, 1,315,313.40 and 451,722.80 is: 677,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,875.60 : 1,315,313.40 = 451,722.80 : x
  2. Step 2: Convert to fraction form
    876,875.60/1,315,313.40 = 451,722.80/x
  3. Step 3: Cross multiply
    876,875.60x = 1,315,313.40 × 451,722.80
  4. Step 4: Simplify right side
    876,875.60x = 594,157,051,925.52
  5. Step 5: Solve for x
    x = 594,157,051,925.52/876,875.60
  6. Step 6: Final answer
    x = 677,584.20

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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.