Home / 1,121,374.54-1,547,443.07-637,894.45

Finding the Fourth Proportional to 1,121,374.54, 1,547,443.07 and 637,894.45

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Solution

The fourth proportional to 1,121,374.54, 1,547,443.07 and 637,894.45 is: 880,263.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,374.54 : 1,547,443.07 = 637,894.45 : x
  2. Step 2: Convert to fraction form
    1,121,374.54/1,547,443.07 = 637,894.45/x
  3. Step 3: Cross multiply
    1,121,374.54x = 1,547,443.07 × 637,894.45
  4. Step 4: Simplify right side
    1,121,374.54x = 987,105,342,854.49
  5. Step 5: Solve for x
    x = 987,105,342,854.49/1,121,374.54
  6. Step 6: Final answer
    x = 880,263.74

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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.