Home / 752,583.21-1,038,567.65-408,419.16

Finding the Fourth Proportional to 752,583.21, 1,038,567.65 and 408,419.16

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Solution

The fourth proportional to 752,583.21, 1,038,567.65 and 408,419.16 is: 563,619.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,583.21 : 1,038,567.65 = 408,419.16 : x
  2. Step 2: Convert to fraction form
    752,583.21/1,038,567.65 = 408,419.16/x
  3. Step 3: Cross multiply
    752,583.21x = 1,038,567.65 × 408,419.16
  4. Step 4: Simplify right side
    752,583.21x = 424,170,925,174.08
  5. Step 5: Solve for x
    x = 424,170,925,174.08/752,583.21
  6. Step 6: Final answer
    x = 563,619.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.