Home / 1,671,894.48-2,307,920.40-1,128,765.72

Finding the Fourth Proportional to 1,671,894.48, 2,307,920.40 and 1,128,765.72

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Solution

The fourth proportional to 1,671,894.48, 2,307,920.40 and 1,128,765.72 is: 1,558,173.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671,894.48 : 2,307,920.40 = 1,128,765.72 : x
  2. Step 2: Convert to fraction form
    1,671,894.48/2,307,920.40 = 1,128,765.72/x
  3. Step 3: Cross multiply
    1,671,894.48x = 2,307,920.40 × 1,128,765.72
  4. Step 4: Simplify right side
    1,671,894.48x = 2,605,101,432,008.69
  5. Step 5: Solve for x
    x = 2,605,101,432,008.69/1,671,894.48
  6. Step 6: Final answer
    x = 1,558,173.36

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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.