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Finding the Fourth Proportional to 692,038.90, 955,012.36 and 386,097.08

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Solution

The fourth proportional to 692,038.90, 955,012.36 and 386,097.08 is: 532,813.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,038.90 : 955,012.36 = 386,097.08 : x
  2. Step 2: Convert to fraction form
    692,038.90/955,012.36 = 386,097.08/x
  3. Step 3: Cross multiply
    692,038.90x = 955,012.36 × 386,097.08
  4. Step 4: Simplify right side
    692,038.90x = 368,727,483,559.91
  5. Step 5: Solve for x
    x = 368,727,483,559.91/692,038.90
  6. Step 6: Final answer
    x = 532,813.23

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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.