Home / 1,087,618.20-1,631,427.30-457,762.20

Finding the Fourth Proportional to 1,087,618.20, 1,631,427.30 and 457,762.20

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Solution

The fourth proportional to 1,087,618.20, 1,631,427.30 and 457,762.20 is: 686,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,618.20 : 1,631,427.30 = 457,762.20 : x
  2. Step 2: Convert to fraction form
    1,087,618.20/1,631,427.30 = 457,762.20/x
  3. Step 3: Cross multiply
    1,087,618.20x = 1,631,427.30 × 457,762.20
  4. Step 4: Simplify right side
    1,087,618.20x = 746,805,749,988.06
  5. Step 5: Solve for x
    x = 746,805,749,988.06/1,087,618.20
  6. Step 6: Final answer
    x = 686,643.30

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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.