Home / 687,742.27-1,030,271.40-450,365.29

Finding the Fourth Proportional to 687,742.27, 1,030,271.40 and 450,365.29

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Solution

The fourth proportional to 687,742.27, 1,030,271.40 and 450,365.29 is: 674,669.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,742.27 : 1,030,271.40 = 450,365.29 : x
  2. Step 2: Convert to fraction form
    687,742.27/1,030,271.40 = 450,365.29/x
  3. Step 3: Cross multiply
    687,742.27x = 1,030,271.40 × 450,365.29
  4. Step 4: Simplify right side
    687,742.27x = 463,998,477,839.71
  5. Step 5: Solve for x
    x = 463,998,477,839.71/687,742.27
  6. Step 6: Final answer
    x = 674,669.13

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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.