Home / 1,276,980.20-1,915,316.70-528,948.20

Finding the Fourth Proportional to 1,276,980.20, 1,915,316.70 and 528,948.20

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Solution

The fourth proportional to 1,276,980.20, 1,915,316.70 and 528,948.20 is: 793,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,980.20 : 1,915,316.70 = 528,948.20 : x
  2. Step 2: Convert to fraction form
    1,276,980.20/1,915,316.70 = 528,948.20/x
  3. Step 3: Cross multiply
    1,276,980.20x = 1,915,316.70 × 528,948.20
  4. Step 4: Simplify right side
    1,276,980.20x = 1,013,103,320,894.94
  5. Step 5: Solve for x
    x = 1,013,103,320,894.94/1,276,980.20
  6. Step 6: Final answer
    x = 793,358.68

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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.