Home / 761,213.40-1,142,111.70-749,257.80

Finding the Fourth Proportional to 761,213.40, 1,142,111.70 and 749,257.80

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Solution

The fourth proportional to 761,213.40, 1,142,111.70 and 749,257.80 is: 1,124,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,213.40 : 1,142,111.70 = 749,257.80 : x
  2. Step 2: Convert to fraction form
    761,213.40/1,142,111.70 = 749,257.80/x
  3. Step 3: Cross multiply
    761,213.40x = 1,142,111.70 × 749,257.80
  4. Step 4: Simplify right side
    761,213.40x = 855,736,099,696.26
  5. Step 5: Solve for x
    x = 855,736,099,696.26/761,213.40
  6. Step 6: Final answer
    x = 1,124,173.72

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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.