Home / 761,300.36-1,050,553.14-421,748.36

Finding the Fourth Proportional to 761,300.36, 1,050,553.14 and 421,748.36

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Solution

The fourth proportional to 761,300.36, 1,050,553.14 and 421,748.36 is: 581,989.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,300.36 : 1,050,553.14 = 421,748.36 : x
  2. Step 2: Convert to fraction form
    761,300.36/1,050,553.14 = 421,748.36/x
  3. Step 3: Cross multiply
    761,300.36x = 1,050,553.14 × 421,748.36
  4. Step 4: Simplify right side
    761,300.36x = 443,069,063,887.85
  5. Step 5: Solve for x
    x = 443,069,063,887.85/761,300.36
  6. Step 6: Final answer
    x = 581,989.83

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1.5x scale

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.