Home / 918,423.70-1,267,417.65-516,015.70

Finding the Fourth Proportional to 918,423.70, 1,267,417.65 and 516,015.70

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Solution

The fourth proportional to 918,423.70, 1,267,417.65 and 516,015.70 is: 712,097.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,423.70 : 1,267,417.65 = 516,015.70 : x
  2. Step 2: Convert to fraction form
    918,423.70/1,267,417.65 = 516,015.70/x
  3. Step 3: Cross multiply
    918,423.70x = 1,267,417.65 × 516,015.70
  4. Step 4: Simplify right side
    918,423.70x = 654,007,405,857.11
  5. Step 5: Solve for x
    x = 654,007,405,857.11/918,423.70
  6. Step 6: Final answer
    x = 712,097.70

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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.