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Finding the Fourth Proportional to 900,006, 1,242,034.20 and 497,623.92

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Solution

The fourth proportional to 900,006, 1,242,034.20 and 497,623.92 is: 686,735.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,006 : 1,242,034.20 = 497,623.92 : x
  2. Step 2: Convert to fraction form
    900,006/1,242,034.20 = 497,623.92/x
  3. Step 3: Cross multiply
    900,006x = 1,242,034.20 × 497,623.92
  4. Step 4: Simplify right side
    900,006x = 618,065,927,378.06
  5. Step 5: Solve for x
    x = 618,065,927,378.06/900,006
  6. Step 6: Final answer
    x = 686,735.34

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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.