Home / 777,435.12-1,072,819.08-437,881.50

Finding the Fourth Proportional to 777,435.12, 1,072,819.08 and 437,881.50

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Solution

The fourth proportional to 777,435.12, 1,072,819.08 and 437,881.50 is: 604,253.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,435.12 : 1,072,819.08 = 437,881.50 : x
  2. Step 2: Convert to fraction form
    777,435.12/1,072,819.08 = 437,881.50/x
  3. Step 3: Cross multiply
    777,435.12x = 1,072,819.08 × 437,881.50
  4. Step 4: Simplify right side
    777,435.12x = 469,767,627,979.02
  5. Step 5: Solve for x
    x = 469,767,627,979.02/777,435.12
  6. Step 6: Final answer
    x = 604,253.16

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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.