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Finding the Fourth Proportional to 614,420.32, 848,060.40 and 400,148.32

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Solution

The fourth proportional to 614,420.32, 848,060.40 and 400,148.32 is: 552,309.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,420.32 : 848,060.40 = 400,148.32 : x
  2. Step 2: Convert to fraction form
    614,420.32/848,060.40 = 400,148.32/x
  3. Step 3: Cross multiply
    614,420.32x = 848,060.40 × 400,148.32
  4. Step 4: Simplify right side
    614,420.32x = 339,349,944,318.53
  5. Step 5: Solve for x
    x = 339,349,944,318.53/614,420.32
  6. Step 6: Final answer
    x = 552,309.12

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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.