Home / 817,779.60-1,225,648.80-418,579.20

Finding the Fourth Proportional to 817,779.60, 1,225,648.80 and 418,579.20

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Solution

The fourth proportional to 817,779.60, 1,225,648.80 and 418,579.20 is: 627,346.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,779.60 : 1,225,648.80 = 418,579.20 : x
  2. Step 2: Convert to fraction form
    817,779.60/1,225,648.80 = 418,579.20/x
  3. Step 3: Cross multiply
    817,779.60x = 1,225,648.80 × 418,579.20
  4. Step 4: Simplify right side
    817,779.60x = 513,031,094,184.96
  5. Step 5: Solve for x
    x = 513,031,094,184.96/817,779.60
  6. Step 6: Final answer
    x = 627,346.41

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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.