Home / 761,309.71-1,051,744.77-500,282.15

Finding the Fourth Proportional to 761,309.71, 1,051,744.77 and 500,282.15

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Solution

The fourth proportional to 761,309.71, 1,051,744.77 and 500,282.15 is: 691,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,309.71 : 1,051,744.77 = 500,282.15 : x
  2. Step 2: Convert to fraction form
    761,309.71/1,051,744.77 = 500,282.15/x
  3. Step 3: Cross multiply
    761,309.71x = 1,051,744.77 × 500,282.15
  4. Step 4: Simplify right side
    761,309.71x = 526,169,129,528.13
  5. Step 5: Solve for x
    x = 526,169,129,528.13/761,309.71
  6. Step 6: Final answer
    x = 691,136.77

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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.