Home / 786,511.20-1,178,017.20-646,543.20

Finding the Fourth Proportional to 786,511.20, 1,178,017.20 and 646,543.20

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Solution

The fourth proportional to 786,511.20, 1,178,017.20 and 646,543.20 is: 968,376.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,511.20 : 1,178,017.20 = 646,543.20 : x
  2. Step 2: Convert to fraction form
    786,511.20/1,178,017.20 = 646,543.20/x
  3. Step 3: Cross multiply
    786,511.20x = 1,178,017.20 × 646,543.20
  4. Step 4: Simplify right side
    786,511.20x = 761,639,010,143.04
  5. Step 5: Solve for x
    x = 761,639,010,143.04/786,511.20
  6. Step 6: Final answer
    x = 968,376.56

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1.5x scale

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.