Home / 687,527.19-1,030,897.13-647,898.75

Finding the Fourth Proportional to 687,527.19, 1,030,897.13 and 647,898.75

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Solution

The fourth proportional to 687,527.19, 1,030,897.13 and 647,898.75 is: 971,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,527.19 : 1,030,897.13 = 647,898.75 : x
  2. Step 2: Convert to fraction form
    687,527.19/1,030,897.13 = 647,898.75/x
  3. Step 3: Cross multiply
    687,527.19x = 1,030,897.13 × 647,898.75
  4. Step 4: Simplify right side
    687,527.19x = 667,916,958,666.09
  5. Step 5: Solve for x
    x = 667,916,958,666.09/687,527.19
  6. Step 6: Final answer
    x = 971,477.16

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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.