Home / 1,070,220.12-1,603,191.09-643,522.32

Finding the Fourth Proportional to 1,070,220.12, 1,603,191.09 and 643,522.32

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Solution

The fourth proportional to 1,070,220.12, 1,603,191.09 and 643,522.32 is: 963,997.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,220.12 : 1,603,191.09 = 643,522.32 : x
  2. Step 2: Convert to fraction form
    1,070,220.12/1,603,191.09 = 643,522.32/x
  3. Step 3: Cross multiply
    1,070,220.12x = 1,603,191.09 × 643,522.32
  4. Step 4: Simplify right side
    1,070,220.12x = 1,031,689,249,640.13
  5. Step 5: Solve for x
    x = 1,031,689,249,640.13/1,070,220.12
  6. Step 6: Final answer
    x = 963,997.25

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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.