Home / 761,030.50-1,050,209.22-421,491.46

Finding the Fourth Proportional to 761,030.50, 1,050,209.22 and 421,491.46

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Solution

The fourth proportional to 761,030.50, 1,050,209.22 and 421,491.46 is: 581,651.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,030.50 : 1,050,209.22 = 421,491.46 : x
  2. Step 2: Convert to fraction form
    761,030.50/1,050,209.22 = 421,491.46/x
  3. Step 3: Cross multiply
    761,030.50x = 1,050,209.22 × 421,491.46
  4. Step 4: Simplify right side
    761,030.50x = 442,654,217,443.26
  5. Step 5: Solve for x
    x = 442,654,217,443.26/761,030.50
  6. Step 6: Final answer
    x = 581,651.09

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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.