Home / 566,268.80-781,458.08-311,614.40

Finding the Fourth Proportional to 566,268.80, 781,458.08 and 311,614.40

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Solution

The fourth proportional to 566,268.80, 781,458.08 and 311,614.40 is: 430,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,268.80 : 781,458.08 = 311,614.40 : x
  2. Step 2: Convert to fraction form
    566,268.80/781,458.08 = 311,614.40/x
  3. Step 3: Cross multiply
    566,268.80x = 781,458.08 × 311,614.40
  4. Step 4: Simplify right side
    566,268.80x = 243,513,590,724.35
  5. Step 5: Solve for x
    x = 243,513,590,724.35/566,268.80
  6. Step 6: Final answer
    x = 430,031.80

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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.