Home / 786,320.20-1,177,730.70-646,352.20

Finding the Fourth Proportional to 786,320.20, 1,177,730.70 and 646,352.20

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Solution

The fourth proportional to 786,320.20, 1,177,730.70 and 646,352.20 is: 968,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,320.20 : 1,177,730.70 = 646,352.20 : x
  2. Step 2: Convert to fraction form
    786,320.20/1,177,730.70 = 646,352.20/x
  3. Step 3: Cross multiply
    786,320.20x = 1,177,730.70 × 646,352.20
  4. Step 4: Simplify right side
    786,320.20x = 761,228,828,952.54
  5. Step 5: Solve for x
    x = 761,228,828,952.54/786,320.20
  6. Step 6: Final answer
    x = 968,090.14

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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.