Home / 1,515,478.86-2,091,356.55-836,410.50

Finding the Fourth Proportional to 1,515,478.86, 2,091,356.55 and 836,410.50

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Solution

The fourth proportional to 1,515,478.86, 2,091,356.55 and 836,410.50 is: 1,154,244.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,478.86 : 2,091,356.55 = 836,410.50 : x
  2. Step 2: Convert to fraction form
    1,515,478.86/2,091,356.55 = 836,410.50/x
  3. Step 3: Cross multiply
    1,515,478.86x = 2,091,356.55 × 836,410.50
  4. Step 4: Simplify right side
    1,515,478.86x = 1,749,232,577,663.78
  5. Step 5: Solve for x
    x = 1,749,232,577,663.78/1,515,478.86
  6. Step 6: Final answer
    x = 1,154,244.13

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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.