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Finding the Fourth Proportional to 723,718.08, 998,746.92 and 401,417.64

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Solution

The fourth proportional to 723,718.08, 998,746.92 and 401,417.64 is: 553,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,718.08 : 998,746.92 = 401,417.64 : x
  2. Step 2: Convert to fraction form
    723,718.08/998,746.92 = 401,417.64/x
  3. Step 3: Cross multiply
    723,718.08x = 998,746.92 × 401,417.64
  4. Step 4: Simplify right side
    723,718.08x = 400,914,631,583.67
  5. Step 5: Solve for x
    x = 400,914,631,583.67/723,718.08
  6. Step 6: Final answer
    x = 553,965.20

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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.