Home / 913,478.80-1,370,218.20-869,933.20

Finding the Fourth Proportional to 913,478.80, 1,370,218.20 and 869,933.20

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Solution

The fourth proportional to 913,478.80, 1,370,218.20 and 869,933.20 is: 1,304,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,478.80 : 1,370,218.20 = 869,933.20 : x
  2. Step 2: Convert to fraction form
    913,478.80/1,370,218.20 = 869,933.20/x
  3. Step 3: Cross multiply
    913,478.80x = 1,370,218.20 × 869,933.20
  4. Step 4: Simplify right side
    913,478.80x = 1,191,998,303,424.24
  5. Step 5: Solve for x
    x = 1,191,998,303,424.24/913,478.80
  6. Step 6: Final answer
    x = 1,304,899.80

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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.