Home / 767,828.80-1,152,088.80-368,315.20

Finding the Fourth Proportional to 767,828.80, 1,152,088.80 and 368,315.20

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Solution

The fourth proportional to 767,828.80, 1,152,088.80 and 368,315.20 is: 552,638.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,828.80 : 1,152,088.80 = 368,315.20 : x
  2. Step 2: Convert to fraction form
    767,828.80/1,152,088.80 = 368,315.20/x
  3. Step 3: Cross multiply
    767,828.80x = 1,152,088.80 × 368,315.20
  4. Step 4: Simplify right side
    767,828.80x = 424,331,816,789.76
  5. Step 5: Solve for x
    x = 424,331,816,789.76/767,828.80
  6. Step 6: Final answer
    x = 552,638.58

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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.