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Finding the Fourth Proportional to 618,461.46, 928,009.60 and 294,616.30

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Solution

The fourth proportional to 618,461.46, 928,009.60 and 294,616.30 is: 442,075.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,461.46 : 928,009.60 = 294,616.30 : x
  2. Step 2: Convert to fraction form
    618,461.46/928,009.60 = 294,616.30/x
  3. Step 3: Cross multiply
    618,461.46x = 928,009.60 × 294,616.30
  4. Step 4: Simplify right side
    618,461.46x = 273,406,754,716.48
  5. Step 5: Solve for x
    x = 273,406,754,716.48/618,461.46
  6. Step 6: Final answer
    x = 442,075.65

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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.