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Finding the Fourth Proportional to 660,069.84, 910,896.30 and 358,263.84

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Solution

The fourth proportional to 660,069.84, 910,896.30 and 358,263.84 is: 494,404.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,069.84 : 910,896.30 = 358,263.84 : x
  2. Step 2: Convert to fraction form
    660,069.84/910,896.30 = 358,263.84/x
  3. Step 3: Cross multiply
    660,069.84x = 910,896.30 × 358,263.84
  4. Step 4: Simplify right side
    660,069.84x = 326,341,206,279.79
  5. Step 5: Solve for x
    x = 326,341,206,279.79/660,069.84
  6. Step 6: Final answer
    x = 494,404.06

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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.