Home / 752,637.69-1,038,647.78-408,476.59

Finding the Fourth Proportional to 752,637.69, 1,038,647.78 and 408,476.59

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Solution

The fourth proportional to 752,637.69, 1,038,647.78 and 408,476.59 is: 563,701.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,637.69 : 1,038,647.78 = 408,476.59 : x
  2. Step 2: Convert to fraction form
    752,637.69/1,038,647.78 = 408,476.59/x
  3. Step 3: Cross multiply
    752,637.69x = 1,038,647.78 × 408,476.59
  4. Step 4: Simplify right side
    752,637.69x = 424,263,303,385.47
  5. Step 5: Solve for x
    x = 424,263,303,385.47/752,637.69
  6. Step 6: Final answer
    x = 563,701.91

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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.