Home / 921,712.77-1,381,619.13-352,938.45

Finding the Fourth Proportional to 921,712.77, 1,381,619.13 and 352,938.45

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Solution

The fourth proportional to 921,712.77, 1,381,619.13 and 352,938.45 is: 529,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,712.77 : 1,381,619.13 = 352,938.45 : x
  2. Step 2: Convert to fraction form
    921,712.77/1,381,619.13 = 352,938.45/x
  3. Step 3: Cross multiply
    921,712.77x = 1,381,619.13 × 352,938.45
  4. Step 4: Simplify right side
    921,712.77x = 487,626,514,232.55
  5. Step 5: Solve for x
    x = 487,626,514,232.55/921,712.77
  6. Step 6: Final answer
    x = 529,043.90

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1.5x scale

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.