Home / 779,929.60-1,167,926.10-512,240.80

Finding the Fourth Proportional to 779,929.60, 1,167,926.10 and 512,240.80

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Solution

The fourth proportional to 779,929.60, 1,167,926.10 and 512,240.80 is: 767,068.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,929.60 : 1,167,926.10 = 512,240.80 : x
  2. Step 2: Convert to fraction form
    779,929.60/1,167,926.10 = 512,240.80/x
  3. Step 3: Cross multiply
    779,929.60x = 1,167,926.10 × 512,240.80
  4. Step 4: Simplify right side
    779,929.60x = 598,259,399,804.88
  5. Step 5: Solve for x
    x = 598,259,399,804.88/779,929.60
  6. Step 6: Final answer
    x = 767,068.46

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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.