Home / 761,564.68-1,142,051.76-406,384.94

Finding the Fourth Proportional to 761,564.68, 1,142,051.76 and 406,384.94

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Solution

The fourth proportional to 761,564.68, 1,142,051.76 and 406,384.94 is: 609,419.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,564.68 : 1,142,051.76 = 406,384.94 : x
  2. Step 2: Convert to fraction form
    761,564.68/1,142,051.76 = 406,384.94/x
  3. Step 3: Cross multiply
    761,564.68x = 1,142,051.76 × 406,384.94
  4. Step 4: Simplify right side
    761,564.68x = 464,112,638,819.62
  5. Step 5: Solve for x
    x = 464,112,638,819.62/761,564.68
  6. Step 6: Final answer
    x = 609,419.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.