Home / 903,809.78-1,246,122.65-661,671.98

Finding the Fourth Proportional to 903,809.78, 1,246,122.65 and 661,671.98

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Solution

The fourth proportional to 903,809.78, 1,246,122.65 and 661,671.98 is: 912,276.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,809.78 : 1,246,122.65 = 661,671.98 : x
  2. Step 2: Convert to fraction form
    903,809.78/1,246,122.65 = 661,671.98/x
  3. Step 3: Cross multiply
    903,809.78x = 1,246,122.65 × 661,671.98
  4. Step 4: Simplify right side
    903,809.78x = 824,524,441,148.35
  5. Step 5: Solve for x
    x = 824,524,441,148.35/903,809.78
  6. Step 6: Final answer
    x = 912,276.52

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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.