Home / 786,423.20-1,177,885.20-646,455.20

Finding the Fourth Proportional to 786,423.20, 1,177,885.20 and 646,455.20

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Solution

The fourth proportional to 786,423.20, 1,177,885.20 and 646,455.20 is: 968,244.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,423.20 : 1,177,885.20 = 646,455.20 : x
  2. Step 2: Convert to fraction form
    786,423.20/1,177,885.20 = 646,455.20/x
  3. Step 3: Cross multiply
    786,423.20x = 1,177,885.20 × 646,455.20
  4. Step 4: Simplify right side
    786,423.20x = 761,450,012,543.04
  5. Step 5: Solve for x
    x = 761,450,012,543.04/786,423.20
  6. Step 6: Final answer
    x = 968,244.59

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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.