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Finding the Fourth Proportional to 698,079.95, 963,073.31 and 403,675.27

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Solution

The fourth proportional to 698,079.95, 963,073.31 and 403,675.27 is: 556,911.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,079.95 : 963,073.31 = 403,675.27 : x
  2. Step 2: Convert to fraction form
    698,079.95/963,073.31 = 403,675.27/x
  3. Step 3: Cross multiply
    698,079.95x = 963,073.31 × 403,675.27
  4. Step 4: Simplify right side
    698,079.95x = 388,768,878,325.23
  5. Step 5: Solve for x
    x = 388,768,878,325.23/698,079.95
  6. Step 6: Final answer
    x = 556,911.68

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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.