Home / 913,427.80-1,370,012.10-282,405.40

Finding the Fourth Proportional to 913,427.80, 1,370,012.10 and 282,405.40

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Solution

The fourth proportional to 913,427.80, 1,370,012.10 and 282,405.40 is: 423,568.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,427.80 : 1,370,012.10 = 282,405.40 : x
  2. Step 2: Convert to fraction form
    913,427.80/1,370,012.10 = 282,405.40/x
  3. Step 3: Cross multiply
    913,427.80x = 1,370,012.10 × 282,405.40
  4. Step 4: Simplify right side
    913,427.80x = 386,898,815,105.34
  5. Step 5: Solve for x
    x = 386,898,815,105.34/913,427.80
  6. Step 6: Final answer
    x = 423,568.03

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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.