Home / 975,724.80-1,463,587.20-640,881.60

Finding the Fourth Proportional to 975,724.80, 1,463,587.20 and 640,881.60

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Solution

The fourth proportional to 975,724.80, 1,463,587.20 and 640,881.60 is: 961,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,724.80 : 1,463,587.20 = 640,881.60 : x
  2. Step 2: Convert to fraction form
    975,724.80/1,463,587.20 = 640,881.60/x
  3. Step 3: Cross multiply
    975,724.80x = 1,463,587.20 × 640,881.60
  4. Step 4: Simplify right side
    975,724.80x = 937,986,106,475.52
  5. Step 5: Solve for x
    x = 937,986,106,475.52/975,724.80
  6. Step 6: Final answer
    x = 961,322.40

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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.