Home / 1,275,388.61-1,759,955.49-702,428.76

Finding the Fourth Proportional to 1,275,388.61, 1,759,955.49 and 702,428.76

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Solution

The fourth proportional to 1,275,388.61, 1,759,955.49 and 702,428.76 is: 969,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,388.61 : 1,759,955.49 = 702,428.76 : x
  2. Step 2: Convert to fraction form
    1,275,388.61/1,759,955.49 = 702,428.76/x
  3. Step 3: Cross multiply
    1,275,388.61x = 1,759,955.49 × 702,428.76
  4. Step 4: Simplify right side
    1,275,388.61x = 1,236,243,352,495.89
  5. Step 5: Solve for x
    x = 1,236,243,352,495.89/1,275,388.61
  6. Step 6: Final answer
    x = 969,307.20

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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.