Home / 777,145.80-1,165,718.70-461,440.20

Finding the Fourth Proportional to 777,145.80, 1,165,718.70 and 461,440.20

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Solution

The fourth proportional to 777,145.80, 1,165,718.70 and 461,440.20 is: 692,160.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,145.80 : 1,165,718.70 = 461,440.20 : x
  2. Step 2: Convert to fraction form
    777,145.80/1,165,718.70 = 461,440.20/x
  3. Step 3: Cross multiply
    777,145.80x = 1,165,718.70 × 461,440.20
  4. Step 4: Simplify right side
    777,145.80x = 537,909,470,071.74
  5. Step 5: Solve for x
    x = 537,909,470,071.74/777,145.80
  6. Step 6: Final answer
    x = 692,160.30

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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.