Home / 692,643.40-1,038,446.70-377,456.20

Finding the Fourth Proportional to 692,643.40, 1,038,446.70 and 377,456.20

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Solution

The fourth proportional to 692,643.40, 1,038,446.70 and 377,456.20 is: 565,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,643.40 : 1,038,446.70 = 377,456.20 : x
  2. Step 2: Convert to fraction form
    692,643.40/1,038,446.70 = 377,456.20/x
  3. Step 3: Cross multiply
    692,643.40x = 1,038,446.70 × 377,456.20
  4. Step 4: Simplify right side
    692,643.40x = 391,968,145,284.54
  5. Step 5: Solve for x
    x = 391,968,145,284.54/692,643.40
  6. Step 6: Final answer
    x = 565,901.80

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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.