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Finding the Fourth Proportional to 994,703.16, 1,492,495.80 and 521,276

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Solution

The fourth proportional to 994,703.16, 1,492,495.80 and 521,276 is: 782,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,703.16 : 1,492,495.80 = 521,276 : x
  2. Step 2: Convert to fraction form
    994,703.16/1,492,495.80 = 521,276/x
  3. Step 3: Cross multiply
    994,703.16x = 1,492,495.80 × 521,276
  4. Step 4: Simplify right side
    994,703.16x = 778,002,240,640.80
  5. Step 5: Solve for x
    x = 778,002,240,640.80/994,703.16
  6. Step 6: Final answer
    x = 782,145.14

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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.