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Finding the Fourth Proportional to 723,378.08, 998,256.84 and 401,088.32

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Solution

The fourth proportional to 723,378.08, 998,256.84 and 401,088.32 is: 553,499.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,378.08 : 998,256.84 = 401,088.32 : x
  2. Step 2: Convert to fraction form
    723,378.08/998,256.84 = 401,088.32/x
  3. Step 3: Cross multiply
    723,378.08x = 998,256.84 × 401,088.32
  4. Step 4: Simplify right side
    723,378.08x = 400,389,158,884.11
  5. Step 5: Solve for x
    x = 400,389,158,884.11/723,378.08
  6. Step 6: Final answer
    x = 553,499.16

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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.