Home / 1,230,225.27-1,697,760.07-686,408.58

Finding the Fourth Proportional to 1,230,225.27, 1,697,760.07 and 686,408.58

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Solution

The fourth proportional to 1,230,225.27, 1,697,760.07 and 686,408.58 is: 947,271.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,225.27 : 1,697,760.07 = 686,408.58 : x
  2. Step 2: Convert to fraction form
    1,230,225.27/1,697,760.07 = 686,408.58/x
  3. Step 3: Cross multiply
    1,230,225.27x = 1,697,760.07 × 686,408.58
  4. Step 4: Simplify right side
    1,230,225.27x = 1,165,357,077,113.38
  5. Step 5: Solve for x
    x = 1,165,357,077,113.38/1,230,225.27
  6. Step 6: Final answer
    x = 947,271.29

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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.