Home / 1,087,031.33-1,500,146.39-628,130.69

Finding the Fourth Proportional to 1,087,031.33, 1,500,146.39 and 628,130.69

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Solution

The fourth proportional to 1,087,031.33, 1,500,146.39 and 628,130.69 is: 866,845.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,031.33 : 1,500,146.39 = 628,130.69 : x
  2. Step 2: Convert to fraction form
    1,087,031.33/1,500,146.39 = 628,130.69/x
  3. Step 3: Cross multiply
    1,087,031.33x = 1,500,146.39 × 628,130.69
  4. Step 4: Simplify right side
    1,087,031.33x = 942,287,987,051.71
  5. Step 5: Solve for x
    x = 942,287,987,051.71/1,087,031.33
  6. Step 6: Final answer
    x = 866,845.29

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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.