Home / 913,208.64-1,370,137.68-407,724

Finding the Fourth Proportional to 913,208.64, 1,370,137.68 and 407,724

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Solution

The fourth proportional to 913,208.64, 1,370,137.68 and 407,724 is: 611,730.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,208.64 : 1,370,137.68 = 407,724 : x
  2. Step 2: Convert to fraction form
    913,208.64/1,370,137.68 = 407,724/x
  3. Step 3: Cross multiply
    913,208.64x = 1,370,137.68 × 407,724
  4. Step 4: Simplify right side
    913,208.64x = 558,638,015,440.32
  5. Step 5: Solve for x
    x = 558,638,015,440.32/913,208.64
  6. Step 6: Final answer
    x = 611,730.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.