Home / 1,313,748.76-1,812,972.48-710,136.76

Finding the Fourth Proportional to 1,313,748.76, 1,812,972.48 and 710,136.76

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Solution

The fourth proportional to 1,313,748.76, 1,812,972.48 and 710,136.76 is: 979,988.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,748.76 : 1,812,972.48 = 710,136.76 : x
  2. Step 2: Convert to fraction form
    1,313,748.76/1,812,972.48 = 710,136.76/x
  3. Step 3: Cross multiply
    1,313,748.76x = 1,812,972.48 × 710,136.76
  4. Step 4: Simplify right side
    1,313,748.76x = 1,287,458,402,916.36
  5. Step 5: Solve for x
    x = 1,287,458,402,916.36/1,313,748.76
  6. Step 6: Final answer
    x = 979,988.29

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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.