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Finding the Fourth Proportional to 660,006.35, 910,809.14 and 358,200.35

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Solution

The fourth proportional to 660,006.35, 910,809.14 and 358,200.35 is: 494,316.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,006.35 : 910,809.14 = 358,200.35 : x
  2. Step 2: Convert to fraction form
    660,006.35/910,809.14 = 358,200.35/x
  3. Step 3: Cross multiply
    660,006.35x = 910,809.14 × 358,200.35
  4. Step 4: Simplify right side
    660,006.35x = 326,252,157,042.23
  5. Step 5: Solve for x
    x = 326,252,157,042.23/660,006.35
  6. Step 6: Final answer
    x = 494,316.69

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1.5x scale

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.