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Finding the Fourth Proportional to 668,430.30, 922,427.53 and 362,513.42

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Solution

The fourth proportional to 668,430.30, 922,427.53 and 362,513.42 is: 500,265.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,430.30 : 922,427.53 = 362,513.42 : x
  2. Step 2: Convert to fraction form
    668,430.30/922,427.53 = 362,513.42/x
  3. Step 3: Cross multiply
    668,430.30x = 922,427.53 × 362,513.42
  4. Step 4: Simplify right side
    668,430.30x = 334,392,358,602.45
  5. Step 5: Solve for x
    x = 334,392,358,602.45/668,430.30
  6. Step 6: Final answer
    x = 500,265.11

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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.