Home / 868,010.60-1,300,979.10-447,069.80

Finding the Fourth Proportional to 868,010.60, 1,300,979.10 and 447,069.80

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Solution

The fourth proportional to 868,010.60, 1,300,979.10 and 447,069.80 is: 670,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,010.60 : 1,300,979.10 = 447,069.80 : x
  2. Step 2: Convert to fraction form
    868,010.60/1,300,979.10 = 447,069.80/x
  3. Step 3: Cross multiply
    868,010.60x = 1,300,979.10 × 447,069.80
  4. Step 4: Simplify right side
    868,010.60x = 581,628,466,041.18
  5. Step 5: Solve for x
    x = 581,628,466,041.18/868,010.60
  6. Step 6: Final answer
    x = 670,070.70

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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.