Home / 1,087,041.84-1,500,160.88-628,141.20

Finding the Fourth Proportional to 1,087,041.84, 1,500,160.88 and 628,141.20

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Solution

The fourth proportional to 1,087,041.84, 1,500,160.88 and 628,141.20 is: 866,859.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,041.84 : 1,500,160.88 = 628,141.20 : x
  2. Step 2: Convert to fraction form
    1,087,041.84/1,500,160.88 = 628,141.20/x
  3. Step 3: Cross multiply
    1,087,041.84x = 1,500,160.88 × 628,141.20
  4. Step 4: Simplify right side
    1,087,041.84x = 942,312,855,356.26
  5. Step 5: Solve for x
    x = 942,312,855,356.26/1,087,041.84
  6. Step 6: Final answer
    x = 866,859.78

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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.