Home / 1,565,721.20-2,160,660.13-912,306.51

Finding the Fourth Proportional to 1,565,721.20, 2,160,660.13 and 912,306.51

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Solution

The fourth proportional to 1,565,721.20, 2,160,660.13 and 912,306.51 is: 1,258,962.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,721.20 : 2,160,660.13 = 912,306.51 : x
  2. Step 2: Convert to fraction form
    1,565,721.20/2,160,660.13 = 912,306.51/x
  3. Step 3: Cross multiply
    1,565,721.20x = 2,160,660.13 × 912,306.51
  4. Step 4: Simplify right side
    1,565,721.20x = 1,971,184,300,215.68
  5. Step 5: Solve for x
    x = 1,971,184,300,215.68/1,565,721.20
  6. Step 6: Final answer
    x = 1,258,962.51

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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.