Home / 687,053.10-1,030,579.65-474,476.70

Finding the Fourth Proportional to 687,053.10, 1,030,579.65 and 474,476.70

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Solution

The fourth proportional to 687,053.10, 1,030,579.65 and 474,476.70 is: 711,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,053.10 : 1,030,579.65 = 474,476.70 : x
  2. Step 2: Convert to fraction form
    687,053.10/1,030,579.65 = 474,476.70/x
  3. Step 3: Cross multiply
    687,053.10x = 1,030,579.65 × 474,476.70
  4. Step 4: Simplify right side
    687,053.10x = 488,986,031,419.16
  5. Step 5: Solve for x
    x = 488,986,031,419.16/687,053.10
  6. Step 6: Final answer
    x = 711,715.05

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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.