Home / 611,580.10-917,370.15-358,981.60

Finding the Fourth Proportional to 611,580.10, 917,370.15 and 358,981.60

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Solution

The fourth proportional to 611,580.10, 917,370.15 and 358,981.60 is: 538,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,580.10 : 917,370.15 = 358,981.60 : x
  2. Step 2: Convert to fraction form
    611,580.10/917,370.15 = 358,981.60/x
  3. Step 3: Cross multiply
    611,580.10x = 917,370.15 × 358,981.60
  4. Step 4: Simplify right side
    611,580.10x = 329,319,004,239.24
  5. Step 5: Solve for x
    x = 329,319,004,239.24/611,580.10
  6. Step 6: Final answer
    x = 538,472.40

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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.