Home / 2,124,033.30-2,930,397.07-1,389,406.90

Finding the Fourth Proportional to 2,124,033.30, 2,930,397.07 and 1,389,406.90

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Solution

The fourth proportional to 2,124,033.30, 2,930,397.07 and 1,389,406.90 is: 1,916,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124,033.30 : 2,930,397.07 = 1,389,406.90 : x
  2. Step 2: Convert to fraction form
    2,124,033.30/2,930,397.07 = 1,389,406.90/x
  3. Step 3: Cross multiply
    2,124,033.30x = 2,930,397.07 × 1,389,406.90
  4. Step 4: Simplify right side
    2,124,033.30x = 4,071,513,908,797.78
  5. Step 5: Solve for x
    x = 4,071,513,908,797.78/2,124,033.30
  6. Step 6: Final answer
    x = 1,916,878.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.