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Finding the Fourth Proportional to 684,887.28, 946,047.54 and 525,709.32

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Solution

The fourth proportional to 684,887.28, 946,047.54 and 525,709.32 is: 726,172.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,887.28 : 946,047.54 = 525,709.32 : x
  2. Step 2: Convert to fraction form
    684,887.28/946,047.54 = 525,709.32/x
  3. Step 3: Cross multiply
    684,887.28x = 946,047.54 × 525,709.32
  4. Step 4: Simplify right side
    684,887.28x = 497,346,008,941.07
  5. Step 5: Solve for x
    x = 497,346,008,941.07/684,887.28
  6. Step 6: Final answer
    x = 726,172.06

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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.