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Finding the Fourth Proportional to 604,649.95, 834,761.09 and 400,975.84

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Solution

The fourth proportional to 604,649.95, 834,761.09 and 400,975.84 is: 553,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,649.95 : 834,761.09 = 400,975.84 : x
  2. Step 2: Convert to fraction form
    604,649.95/834,761.09 = 400,975.84/x
  3. Step 3: Cross multiply
    604,649.95x = 834,761.09 × 400,975.84
  4. Step 4: Simplify right side
    604,649.95x = 334,719,031,307.96
  5. Step 5: Solve for x
    x = 334,719,031,307.96/604,649.95
  6. Step 6: Final answer
    x = 553,574.90

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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.