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Finding the Fourth Proportional to 660,070.08, 910,898.46 and 358,264.08

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Solution

The fourth proportional to 660,070.08, 910,898.46 and 358,264.08 is: 494,405.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,070.08 : 910,898.46 = 358,264.08 : x
  2. Step 2: Convert to fraction form
    660,070.08/910,898.46 = 358,264.08/x
  3. Step 3: Cross multiply
    660,070.08x = 910,898.46 × 358,264.08
  4. Step 4: Simplify right side
    660,070.08x = 326,342,198,745.32
  5. Step 5: Solve for x
    x = 326,342,198,745.32/660,070.08
  6. Step 6: Final answer
    x = 494,405.38

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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.