Home / 878,412.40-1,316,743.80-404,270.80

Finding the Fourth Proportional to 878,412.40, 1,316,743.80 and 404,270.80

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Solution

The fourth proportional to 878,412.40, 1,316,743.80 and 404,270.80 is: 606,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,412.40 : 1,316,743.80 = 404,270.80 : x
  2. Step 2: Convert to fraction form
    878,412.40/1,316,743.80 = 404,270.80/x
  3. Step 3: Cross multiply
    878,412.40x = 1,316,743.80 × 404,270.80
  4. Step 4: Simplify right side
    878,412.40x = 532,321,069,421.04
  5. Step 5: Solve for x
    x = 532,321,069,421.04/878,412.40
  6. Step 6: Final answer
    x = 606,003.59

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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.