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Finding the Fourth Proportional to 876,876.60, 1,314,658.80 and 477,967.80

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Solution

The fourth proportional to 876,876.60, 1,314,658.80 and 477,967.80 is: 716,594.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,876.60 : 1,314,658.80 = 477,967.80 : x
  2. Step 2: Convert to fraction form
    876,876.60/1,314,658.80 = 477,967.80/x
  3. Step 3: Cross multiply
    876,876.60x = 1,314,658.80 × 477,967.80
  4. Step 4: Simplify right side
    876,876.60x = 628,364,574,386.64
  5. Step 5: Solve for x
    x = 628,364,574,386.64/876,876.60
  6. Step 6: Final answer
    x = 716,594.07

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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.