Home / 852,125.20-1,276,632.60-519,312.40

Finding the Fourth Proportional to 852,125.20, 1,276,632.60 and 519,312.40

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Solution

The fourth proportional to 852,125.20, 1,276,632.60 and 519,312.40 is: 778,020.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,125.20 : 1,276,632.60 = 519,312.40 : x
  2. Step 2: Convert to fraction form
    852,125.20/1,276,632.60 = 519,312.40/x
  3. Step 3: Cross multiply
    852,125.20x = 1,276,632.60 × 519,312.40
  4. Step 4: Simplify right side
    852,125.20x = 662,971,139,424.24
  5. Step 5: Solve for x
    x = 662,971,139,424.24/852,125.20
  6. Step 6: Final answer
    x = 778,020.81

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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.