Home / 779,985.75-1,169,830.67-380,224.47

Finding the Fourth Proportional to 779,985.75, 1,169,830.67 and 380,224.47

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Solution

The fourth proportional to 779,985.75, 1,169,830.67 and 380,224.47 is: 570,264.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,985.75 : 1,169,830.67 = 380,224.47 : x
  2. Step 2: Convert to fraction form
    779,985.75/1,169,830.67 = 380,224.47/x
  3. Step 3: Cross multiply
    779,985.75x = 1,169,830.67 × 380,224.47
  4. Step 4: Simplify right side
    779,985.75x = 444,798,244,589.37
  5. Step 5: Solve for x
    x = 444,798,244,589.37/779,985.75
  6. Step 6: Final answer
    x = 570,264.58

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1.5x scale

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.