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Finding the Fourth Proportional to 702,201.80, 1,053,302.70 and 403,603.40

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Solution

The fourth proportional to 702,201.80, 1,053,302.70 and 403,603.40 is: 605,405.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,201.80 : 1,053,302.70 = 403,603.40 : x
  2. Step 2: Convert to fraction form
    702,201.80/1,053,302.70 = 403,603.40/x
  3. Step 3: Cross multiply
    702,201.80x = 1,053,302.70 × 403,603.40
  4. Step 4: Simplify right side
    702,201.80x = 425,116,550,949.18
  5. Step 5: Solve for x
    x = 425,116,550,949.18/702,201.80
  6. Step 6: Final answer
    x = 605,405.10

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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.