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Finding the Fourth Proportional to 922,339.20, 1,383,703.20 and 291,316.80

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Solution

The fourth proportional to 922,339.20, 1,383,703.20 and 291,316.80 is: 437,036.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,339.20 : 1,383,703.20 = 291,316.80 : x
  2. Step 2: Convert to fraction form
    922,339.20/1,383,703.20 = 291,316.80/x
  3. Step 3: Cross multiply
    922,339.20x = 1,383,703.20 × 291,316.80
  4. Step 4: Simplify right side
    922,339.20x = 403,095,988,373.76
  5. Step 5: Solve for x
    x = 403,095,988,373.76/922,339.20
  6. Step 6: Final answer
    x = 437,036.60

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1.5x scale

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.