Home / 777,746.20-1,166,619.30-245,430.40

Finding the Fourth Proportional to 777,746.20, 1,166,619.30 and 245,430.40

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Solution

The fourth proportional to 777,746.20, 1,166,619.30 and 245,430.40 is: 368,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,746.20 : 1,166,619.30 = 245,430.40 : x
  2. Step 2: Convert to fraction form
    777,746.20/1,166,619.30 = 245,430.40/x
  3. Step 3: Cross multiply
    777,746.20x = 1,166,619.30 × 245,430.40
  4. Step 4: Simplify right side
    777,746.20x = 286,323,841,446.72
  5. Step 5: Solve for x
    x = 286,323,841,446.72/777,746.20
  6. Step 6: Final answer
    x = 368,145.60

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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.