Home / 879,660.40-1,319,490.60-669,708.40

Finding the Fourth Proportional to 879,660.40, 1,319,490.60 and 669,708.40

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Solution

The fourth proportional to 879,660.40, 1,319,490.60 and 669,708.40 is: 1,004,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,660.40 : 1,319,490.60 = 669,708.40 : x
  2. Step 2: Convert to fraction form
    879,660.40/1,319,490.60 = 669,708.40/x
  3. Step 3: Cross multiply
    879,660.40x = 1,319,490.60 × 669,708.40
  4. Step 4: Simplify right side
    879,660.40x = 883,673,938,541.04
  5. Step 5: Solve for x
    x = 883,673,938,541.04/879,660.40
  6. Step 6: Final answer
    x = 1,004,562.60

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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.