Home / 876,365.20-1,314,547.80-315,326.80

Finding the Fourth Proportional to 876,365.20, 1,314,547.80 and 315,326.80

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Solution

The fourth proportional to 876,365.20, 1,314,547.80 and 315,326.80 is: 472,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,365.20 : 1,314,547.80 = 315,326.80 : x
  2. Step 2: Convert to fraction form
    876,365.20/1,314,547.80 = 315,326.80/x
  3. Step 3: Cross multiply
    876,365.20x = 1,314,547.80 × 315,326.80
  4. Step 4: Simplify right side
    876,365.20x = 414,512,151,221.04
  5. Step 5: Solve for x
    x = 414,512,151,221.04/876,365.20
  6. Step 6: Final answer
    x = 472,990.20

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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.