Home / 829,478.80-1,244,218.20-815,654.80

Finding the Fourth Proportional to 829,478.80, 1,244,218.20 and 815,654.80

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Solution

The fourth proportional to 829,478.80, 1,244,218.20 and 815,654.80 is: 1,223,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,478.80 : 1,244,218.20 = 815,654.80 : x
  2. Step 2: Convert to fraction form
    829,478.80/1,244,218.20 = 815,654.80/x
  3. Step 3: Cross multiply
    829,478.80x = 1,244,218.20 × 815,654.80
  4. Step 4: Simplify right side
    829,478.80x = 1,014,852,547,077.36
  5. Step 5: Solve for x
    x = 1,014,852,547,077.36/829,478.80
  6. Step 6: Final answer
    x = 1,223,482.20

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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.