Home / 879,497.60-1,319,246.40-458,718.80

Finding the Fourth Proportional to 879,497.60, 1,319,246.40 and 458,718.80

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Solution

The fourth proportional to 879,497.60, 1,319,246.40 and 458,718.80 is: 688,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,497.60 : 1,319,246.40 = 458,718.80 : x
  2. Step 2: Convert to fraction form
    879,497.60/1,319,246.40 = 458,718.80/x
  3. Step 3: Cross multiply
    879,497.60x = 1,319,246.40 × 458,718.80
  4. Step 4: Simplify right side
    879,497.60x = 605,163,125,512.32
  5. Step 5: Solve for x
    x = 605,163,125,512.32/879,497.60
  6. Step 6: Final answer
    x = 688,078.20

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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.