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Finding the Fourth Proportional to 736,887, 1,016,904.06 and 418,935

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Solution

The fourth proportional to 736,887, 1,016,904.06 and 418,935 is: 578,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,887 : 1,016,904.06 = 418,935 : x
  2. Step 2: Convert to fraction form
    736,887/1,016,904.06 = 418,935/x
  3. Step 3: Cross multiply
    736,887x = 1,016,904.06 × 418,935
  4. Step 4: Simplify right side
    736,887x = 426,016,702,376.10
  5. Step 5: Solve for x
    x = 426,016,702,376.10/736,887
  6. Step 6: Final answer
    x = 578,130.30

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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.