Home / 727,355.40-1,091,033.10-412,427.40

Finding the Fourth Proportional to 727,355.40, 1,091,033.10 and 412,427.40

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Solution

The fourth proportional to 727,355.40, 1,091,033.10 and 412,427.40 is: 618,641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,355.40 : 1,091,033.10 = 412,427.40 : x
  2. Step 2: Convert to fraction form
    727,355.40/1,091,033.10 = 412,427.40/x
  3. Step 3: Cross multiply
    727,355.40x = 1,091,033.10 × 412,427.40
  4. Step 4: Simplify right side
    727,355.40x = 449,971,944,746.94
  5. Step 5: Solve for x
    x = 449,971,944,746.94/727,355.40
  6. Step 6: Final answer
    x = 618,641.10

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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.