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Finding the Fourth Proportional to 440,319.44, 607,047.72 and 287,054.48

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Solution

The fourth proportional to 440,319.44, 607,047.72 and 287,054.48 is: 395,748.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,319.44 : 607,047.72 = 287,054.48 : x
  2. Step 2: Convert to fraction form
    440,319.44/607,047.72 = 287,054.48/x
  3. Step 3: Cross multiply
    440,319.44x = 607,047.72 × 287,054.48
  4. Step 4: Simplify right side
    440,319.44x = 174,255,768,040.95
  5. Step 5: Solve for x
    x = 174,255,768,040.95/440,319.44
  6. Step 6: Final answer
    x = 395,748.52

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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.