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Finding the Fourth Proportional to 683,574.80, 1,025,410.80 and 210,259.40

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Solution

The fourth proportional to 683,574.80, 1,025,410.80 and 210,259.40 is: 315,404.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,574.80 : 1,025,410.80 = 210,259.40 : x
  2. Step 2: Convert to fraction form
    683,574.80/1,025,410.80 = 210,259.40/x
  3. Step 3: Cross multiply
    683,574.80x = 1,025,410.80 × 210,259.40
  4. Step 4: Simplify right side
    683,574.80x = 215,602,259,561.52
  5. Step 5: Solve for x
    x = 215,602,259,561.52/683,574.80
  6. Step 6: Final answer
    x = 315,404.05

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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.