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Finding the Fourth Proportional to 618,041.60, 927,062.40 and 286,265.60

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Solution

The fourth proportional to 618,041.60, 927,062.40 and 286,265.60 is: 429,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,041.60 : 927,062.40 = 286,265.60 : x
  2. Step 2: Convert to fraction form
    618,041.60/927,062.40 = 286,265.60/x
  3. Step 3: Cross multiply
    618,041.60x = 927,062.40 × 286,265.60
  4. Step 4: Simplify right side
    618,041.60x = 265,386,074,173.44
  5. Step 5: Solve for x
    x = 265,386,074,173.44/618,041.60
  6. Step 6: Final answer
    x = 429,398.40

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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.