Home / 752,664.36-1,038,667.98-408,500.91

Finding the Fourth Proportional to 752,664.36, 1,038,667.98 and 408,500.91

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Solution

The fourth proportional to 752,664.36, 1,038,667.98 and 408,500.91 is: 563,726.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,664.36 : 1,038,667.98 = 408,500.91 : x
  2. Step 2: Convert to fraction form
    752,664.36/1,038,667.98 = 408,500.91/x
  3. Step 3: Cross multiply
    752,664.36x = 1,038,667.98 × 408,500.91
  4. Step 4: Simplify right side
    752,664.36x = 424,296,815,017.86
  5. Step 5: Solve for x
    x = 424,296,815,017.86/752,664.36
  6. Step 6: Final answer
    x = 563,726.46

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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.