Home / 1,258,603.80-1,887,905.70-372,139.80

Finding the Fourth Proportional to 1,258,603.80, 1,887,905.70 and 372,139.80

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Solution

The fourth proportional to 1,258,603.80, 1,887,905.70 and 372,139.80 is: 558,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,603.80 : 1,887,905.70 = 372,139.80 : x
  2. Step 2: Convert to fraction form
    1,258,603.80/1,887,905.70 = 372,139.80/x
  3. Step 3: Cross multiply
    1,258,603.80x = 1,887,905.70 × 372,139.80
  4. Step 4: Simplify right side
    1,258,603.80x = 702,564,849,616.86
  5. Step 5: Solve for x
    x = 702,564,849,616.86/1,258,603.80
  6. Step 6: Final answer
    x = 558,209.70

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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.