Home / 825,345.90-1,138,962.91-462,768.64

Finding the Fourth Proportional to 825,345.90, 1,138,962.91 and 462,768.64

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Solution

The fourth proportional to 825,345.90, 1,138,962.91 and 462,768.64 is: 638,612.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,345.90 : 1,138,962.91 = 462,768.64 : x
  2. Step 2: Convert to fraction form
    825,345.90/1,138,962.91 = 462,768.64/x
  3. Step 3: Cross multiply
    825,345.90x = 1,138,962.91 × 462,768.64
  4. Step 4: Simplify right side
    825,345.90x = 527,076,316,871.14
  5. Step 5: Solve for x
    x = 527,076,316,871.14/825,345.90
  6. Step 6: Final answer
    x = 638,612.63

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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.