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Finding the Fourth Proportional to 585,111.60, 807,464.70 and 330,415.20

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Solution

The fourth proportional to 585,111.60, 807,464.70 and 330,415.20 is: 455,979.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,111.60 : 807,464.70 = 330,415.20 : x
  2. Step 2: Convert to fraction form
    585,111.60/807,464.70 = 330,415.20/x
  3. Step 3: Cross multiply
    585,111.60x = 807,464.70 × 330,415.20
  4. Step 4: Simplify right side
    585,111.60x = 266,798,610,343.44
  5. Step 5: Solve for x
    x = 266,798,610,343.44/585,111.60
  6. Step 6: Final answer
    x = 455,979.01

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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.