Home / 771,981.28-1,159,751.76-740,095.20

Finding the Fourth Proportional to 771,981.28, 1,159,751.76 and 740,095.20

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Solution

The fourth proportional to 771,981.28, 1,159,751.76 and 740,095.20 is: 1,111,849.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,981.28 : 1,159,751.76 = 740,095.20 : x
  2. Step 2: Convert to fraction form
    771,981.28/1,159,751.76 = 740,095.20/x
  3. Step 3: Cross multiply
    771,981.28x = 1,159,751.76 × 740,095.20
  4. Step 4: Simplify right side
    771,981.28x = 858,326,710,767.55
  5. Step 5: Solve for x
    x = 858,326,710,767.55/771,981.28
  6. Step 6: Final answer
    x = 1,111,849.13

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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.