Home / 761,100.13-1,049,919.98-470,618.84

Finding the Fourth Proportional to 761,100.13, 1,049,919.98 and 470,618.84

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Solution

The fourth proportional to 761,100.13, 1,049,919.98 and 470,618.84 is: 649,207.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,100.13 : 1,049,919.98 = 470,618.84 : x
  2. Step 2: Convert to fraction form
    761,100.13/1,049,919.98 = 470,618.84/x
  3. Step 3: Cross multiply
    761,100.13x = 1,049,919.98 × 470,618.84
  4. Step 4: Simplify right side
    761,100.13x = 494,112,121,417.18
  5. Step 5: Solve for x
    x = 494,112,121,417.18/761,100.13
  6. Step 6: Final answer
    x = 649,207.78

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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.