Home / 1,078,285.32-1,615,830.54-437,810.22

Finding the Fourth Proportional to 1,078,285.32, 1,615,830.54 and 437,810.22

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Solution

The fourth proportional to 1,078,285.32, 1,615,830.54 and 437,810.22 is: 656,066.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,285.32 : 1,615,830.54 = 437,810.22 : x
  2. Step 2: Convert to fraction form
    1,078,285.32/1,615,830.54 = 437,810.22/x
  3. Step 3: Cross multiply
    1,078,285.32x = 1,615,830.54 × 437,810.22
  4. Step 4: Simplify right side
    1,078,285.32x = 707,427,124,200.12
  5. Step 5: Solve for x
    x = 707,427,124,200.12/1,078,285.32
  6. Step 6: Final answer
    x = 656,066.73

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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.