Home / 692,083.01-1,038,278.21-212,377.32

Finding the Fourth Proportional to 692,083.01, 1,038,278.21 and 212,377.32

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Solution

The fourth proportional to 692,083.01, 1,038,278.21 and 212,377.32 is: 318,613.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,083.01 : 1,038,278.21 = 212,377.32 : x
  2. Step 2: Convert to fraction form
    692,083.01/1,038,278.21 = 212,377.32/x
  3. Step 3: Cross multiply
    692,083.01x = 1,038,278.21 × 212,377.32
  4. Step 4: Simplify right side
    692,083.01x = 220,506,742,592.31
  5. Step 5: Solve for x
    x = 220,506,742,592.31/692,083.01
  6. Step 6: Final answer
    x = 318,613.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.