Home / 889,204.80-1,333,807.20-815,721.60

Finding the Fourth Proportional to 889,204.80, 1,333,807.20 and 815,721.60

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Solution

The fourth proportional to 889,204.80, 1,333,807.20 and 815,721.60 is: 1,223,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,204.80 : 1,333,807.20 = 815,721.60 : x
  2. Step 2: Convert to fraction form
    889,204.80/1,333,807.20 = 815,721.60/x
  3. Step 3: Cross multiply
    889,204.80x = 1,333,807.20 × 815,721.60
  4. Step 4: Simplify right side
    889,204.80x = 1,088,015,343,275.52
  5. Step 5: Solve for x
    x = 1,088,015,343,275.52/889,204.80
  6. Step 6: Final answer
    x = 1,223,582.40

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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.