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Finding the Fourth Proportional to 485,595.42, 670,006.23 and 294,603.90

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Solution

The fourth proportional to 485,595.42, 670,006.23 and 294,603.90 is: 406,483.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,595.42 : 670,006.23 = 294,603.90 : x
  2. Step 2: Convert to fraction form
    485,595.42/670,006.23 = 294,603.90/x
  3. Step 3: Cross multiply
    485,595.42x = 670,006.23 × 294,603.90
  4. Step 4: Simplify right side
    485,595.42x = 197,386,448,382.30
  5. Step 5: Solve for x
    x = 197,386,448,382.30/485,595.42
  6. Step 6: Final answer
    x = 406,483.34

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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.