Home / 875,779.20-1,313,668.80-314,870.40

Finding the Fourth Proportional to 875,779.20, 1,313,668.80 and 314,870.40

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Solution

The fourth proportional to 875,779.20, 1,313,668.80 and 314,870.40 is: 472,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,779.20 : 1,313,668.80 = 314,870.40 : x
  2. Step 2: Convert to fraction form
    875,779.20/1,313,668.80 = 314,870.40/x
  3. Step 3: Cross multiply
    875,779.20x = 1,313,668.80 × 314,870.40
  4. Step 4: Simplify right side
    875,779.20x = 413,635,420,523.52
  5. Step 5: Solve for x
    x = 413,635,420,523.52/875,779.20
  6. Step 6: Final answer
    x = 472,305.60

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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.