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Finding the Fourth Proportional to 659,018.32, 909,445.68 and 357,212.32

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Solution

The fourth proportional to 659,018.32, 909,445.68 and 357,212.32 is: 492,953.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,018.32 : 909,445.68 = 357,212.32 : x
  2. Step 2: Convert to fraction form
    659,018.32/909,445.68 = 357,212.32/x
  3. Step 3: Cross multiply
    659,018.32x = 909,445.68 × 357,212.32
  4. Step 4: Simplify right side
    659,018.32x = 324,865,201,266.78
  5. Step 5: Solve for x
    x = 324,865,201,266.78/659,018.32
  6. Step 6: Final answer
    x = 492,953.22

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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.