Home / 627,345.48-865,739.97-340,866.30

Finding the Fourth Proportional to 627,345.48, 865,739.97 and 340,866.30

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Solution

The fourth proportional to 627,345.48, 865,739.97 and 340,866.30 is: 470,397.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,345.48 : 865,739.97 = 340,866.30 : x
  2. Step 2: Convert to fraction form
    627,345.48/865,739.97 = 340,866.30/x
  3. Step 3: Cross multiply
    627,345.48x = 865,739.97 × 340,866.30
  4. Step 4: Simplify right side
    627,345.48x = 295,101,580,336.01
  5. Step 5: Solve for x
    x = 295,101,580,336.01/627,345.48
  6. Step 6: Final answer
    x = 470,397.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.