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Finding the Fourth Proportional to 425,699.81, 590,001.57 and 417,728.20

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Solution

The fourth proportional to 425,699.81, 590,001.57 and 417,728.20 is: 578,953.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,699.81 : 590,001.57 = 417,728.20 : x
  2. Step 2: Convert to fraction form
    425,699.81/590,001.57 = 417,728.20/x
  3. Step 3: Cross multiply
    425,699.81x = 590,001.57 × 417,728.20
  4. Step 4: Simplify right side
    425,699.81x = 246,460,293,833.27
  5. Step 5: Solve for x
    x = 246,460,293,833.27/425,699.81
  6. Step 6: Final answer
    x = 578,953.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.