Home / 771,470.40-1,157,378.40-298,113.60

Finding the Fourth Proportional to 771,470.40, 1,157,378.40 and 298,113.60

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Solution

The fourth proportional to 771,470.40, 1,157,378.40 and 298,113.60 is: 447,237.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,470.40 : 1,157,378.40 = 298,113.60 : x
  2. Step 2: Convert to fraction form
    771,470.40/1,157,378.40 = 298,113.60/x
  3. Step 3: Cross multiply
    771,470.40x = 1,157,378.40 × 298,113.60
  4. Step 4: Simplify right side
    771,470.40x = 345,030,241,386.24
  5. Step 5: Solve for x
    x = 345,030,241,386.24/771,470.40
  6. Step 6: Final answer
    x = 447,237.17

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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.