Home / 717,963.90-1,076,945.85-480,018.30

Finding the Fourth Proportional to 717,963.90, 1,076,945.85 and 480,018.30

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Solution

The fourth proportional to 717,963.90, 1,076,945.85 and 480,018.30 is: 720,027.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,963.90 : 1,076,945.85 = 480,018.30 : x
  2. Step 2: Convert to fraction form
    717,963.90/1,076,945.85 = 480,018.30/x
  3. Step 3: Cross multiply
    717,963.90x = 1,076,945.85 × 480,018.30
  4. Step 4: Simplify right side
    717,963.90x = 516,953,716,109.06
  5. Step 5: Solve for x
    x = 516,953,716,109.06/717,963.90
  6. Step 6: Final answer
    x = 720,027.45

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Double scale
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Similar ratio
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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.