Home / 910,860.72-1,256,981.40-502,987.92

Finding the Fourth Proportional to 910,860.72, 1,256,981.40 and 502,987.92

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Solution

The fourth proportional to 910,860.72, 1,256,981.40 and 502,987.92 is: 694,119.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,860.72 : 1,256,981.40 = 502,987.92 : x
  2. Step 2: Convert to fraction form
    910,860.72/1,256,981.40 = 502,987.92/x
  3. Step 3: Cross multiply
    910,860.72x = 1,256,981.40 × 502,987.92
  4. Step 4: Simplify right side
    910,860.72x = 632,246,459,864.69
  5. Step 5: Solve for x
    x = 632,246,459,864.69/910,860.72
  6. Step 6: Final answer
    x = 694,119.80

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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.