Home / 909,483.15-1,255,175.46-679,641.33

Finding the Fourth Proportional to 909,483.15, 1,255,175.46 and 679,641.33

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Solution

The fourth proportional to 909,483.15, 1,255,175.46 and 679,641.33 is: 937,971.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,483.15 : 1,255,175.46 = 679,641.33 : x
  2. Step 2: Convert to fraction form
    909,483.15/1,255,175.46 = 679,641.33/x
  3. Step 3: Cross multiply
    909,483.15x = 1,255,175.46 × 679,641.33
  4. Step 4: Simplify right side
    909,483.15x = 853,069,119,017.76
  5. Step 5: Solve for x
    x = 853,069,119,017.76/909,483.15
  6. Step 6: Final answer
    x = 937,971.33

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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.