Home / 1,225,681.27-1,838,530.10-426,977.93

Finding the Fourth Proportional to 1,225,681.27, 1,838,530.10 and 426,977.93

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Solution

The fourth proportional to 1,225,681.27, 1,838,530.10 and 426,977.93 is: 640,469.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,681.27 : 1,838,530.10 = 426,977.93 : x
  2. Step 2: Convert to fraction form
    1,225,681.27/1,838,530.10 = 426,977.93/x
  3. Step 3: Cross multiply
    1,225,681.27x = 1,838,530.10 × 426,977.93
  4. Step 4: Simplify right side
    1,225,681.27x = 785,011,782,004.46
  5. Step 5: Solve for x
    x = 785,011,782,004.46/1,225,681.27
  6. Step 6: Final answer
    x = 640,469.76

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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.