Home / 925,639.36-1,389,744-476,681.20

Finding the Fourth Proportional to 925,639.36, 1,389,744 and 476,681.20

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Solution

The fourth proportional to 925,639.36, 1,389,744 and 476,681.20 is: 715,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,639.36 : 1,389,744 = 476,681.20 : x
  2. Step 2: Convert to fraction form
    925,639.36/1,389,744 = 476,681.20/x
  3. Step 3: Cross multiply
    925,639.36x = 1,389,744 × 476,681.20
  4. Step 4: Simplify right side
    925,639.36x = 662,464,837,612.80
  5. Step 5: Solve for x
    x = 662,464,837,612.80/925,639.36
  6. Step 6: Final answer
    x = 715,683.52

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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.