Home / 698,985.60-1,046,145.60-489,033.60

Finding the Fourth Proportional to 698,985.60, 1,046,145.60 and 489,033.60

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Solution

The fourth proportional to 698,985.60, 1,046,145.60 and 489,033.60 is: 731,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,985.60 : 1,046,145.60 = 489,033.60 : x
  2. Step 2: Convert to fraction form
    698,985.60/1,046,145.60 = 489,033.60/x
  3. Step 3: Cross multiply
    698,985.60x = 1,046,145.60 × 489,033.60
  4. Step 4: Simplify right side
    698,985.60x = 511,600,348,892.16
  5. Step 5: Solve for x
    x = 511,600,348,892.16/698,985.60
  6. Step 6: Final answer
    x = 731,918.30

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1.5x scale

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.