Home / 761,211.40-1,142,108.70-749,255.80

Finding the Fourth Proportional to 761,211.40, 1,142,108.70 and 749,255.80

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Solution

The fourth proportional to 761,211.40, 1,142,108.70 and 749,255.80 is: 1,124,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,211.40 : 1,142,108.70 = 749,255.80 : x
  2. Step 2: Convert to fraction form
    761,211.40/1,142,108.70 = 749,255.80/x
  3. Step 3: Cross multiply
    761,211.40x = 1,142,108.70 × 749,255.80
  4. Step 4: Simplify right side
    761,211.40x = 855,731,567,705.46
  5. Step 5: Solve for x
    x = 855,731,567,705.46/761,211.40
  6. Step 6: Final answer
    x = 1,124,170.72

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1.5x scale

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.