Home / 692,261.10-1,038,499.65-218,901.42

Finding the Fourth Proportional to 692,261.10, 1,038,499.65 and 218,901.42

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Solution

The fourth proportional to 692,261.10, 1,038,499.65 and 218,901.42 is: 328,386.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,261.10 : 1,038,499.65 = 218,901.42 : x
  2. Step 2: Convert to fraction form
    692,261.10/1,038,499.65 = 218,901.42/x
  3. Step 3: Cross multiply
    692,261.10x = 1,038,499.65 × 218,901.42
  4. Step 4: Simplify right side
    692,261.10x = 227,329,048,054.50
  5. Step 5: Solve for x
    x = 227,329,048,054.50/692,261.10
  6. Step 6: Final answer
    x = 328,386.28

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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.