Home / 855,650.95-1,180,427.65-515,930.47

Finding the Fourth Proportional to 855,650.95, 1,180,427.65 and 515,930.47

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Solution

The fourth proportional to 855,650.95, 1,180,427.65 and 515,930.47 is: 711,760.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,650.95 : 1,180,427.65 = 515,930.47 : x
  2. Step 2: Convert to fraction form
    855,650.95/1,180,427.65 = 515,930.47/x
  3. Step 3: Cross multiply
    855,650.95x = 1,180,427.65 × 515,930.47
  4. Step 4: Simplify right side
    855,650.95x = 609,018,592,265.50
  5. Step 5: Solve for x
    x = 609,018,592,265.50/855,650.95
  6. Step 6: Final answer
    x = 711,760.55

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1.5x scale

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.