Home / 692,406.90-1,038,506.40-219,030.75

Finding the Fourth Proportional to 692,406.90, 1,038,506.40 and 219,030.75

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Solution

The fourth proportional to 692,406.90, 1,038,506.40 and 219,030.75 is: 328,513.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,406.90 : 1,038,506.40 = 219,030.75 : x
  2. Step 2: Convert to fraction form
    692,406.90/1,038,506.40 = 219,030.75/x
  3. Step 3: Cross multiply
    692,406.90x = 1,038,506.40 × 219,030.75
  4. Step 4: Simplify right side
    692,406.90x = 227,464,835,671.80
  5. Step 5: Solve for x
    x = 227,464,835,671.80/692,406.90
  6. Step 6: Final answer
    x = 328,513.24

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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.