Home / 879,085.60-1,318,628.40-547,309.60

Finding the Fourth Proportional to 879,085.60, 1,318,628.40 and 547,309.60

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Solution

The fourth proportional to 879,085.60, 1,318,628.40 and 547,309.60 is: 820,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,085.60 : 1,318,628.40 = 547,309.60 : x
  2. Step 2: Convert to fraction form
    879,085.60/1,318,628.40 = 547,309.60/x
  3. Step 3: Cross multiply
    879,085.60x = 1,318,628.40 × 547,309.60
  4. Step 4: Simplify right side
    879,085.60x = 721,697,982,152.64
  5. Step 5: Solve for x
    x = 721,697,982,152.64/879,085.60
  6. Step 6: Final answer
    x = 820,964.40

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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.