Home / 971,316.45-1,456,974.68-380,340.45

Finding the Fourth Proportional to 971,316.45, 1,456,974.68 and 380,340.45

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Solution

The fourth proportional to 971,316.45, 1,456,974.68 and 380,340.45 is: 570,510.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,316.45 : 1,456,974.68 = 380,340.45 : x
  2. Step 2: Convert to fraction form
    971,316.45/1,456,974.68 = 380,340.45/x
  3. Step 3: Cross multiply
    971,316.45x = 1,456,974.68 × 380,340.45
  4. Step 4: Simplify right side
    971,316.45x = 554,146,403,528.10
  5. Step 5: Solve for x
    x = 554,146,403,528.10/971,316.45
  6. Step 6: Final answer
    x = 570,510.68

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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.