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Finding the Fourth Proportional to 612,762.42, 845,584.86 and 354,598.02

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Solution

The fourth proportional to 612,762.42, 845,584.86 and 354,598.02 is: 489,329.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,762.42 : 845,584.86 = 354,598.02 : x
  2. Step 2: Convert to fraction form
    612,762.42/845,584.86 = 354,598.02/x
  3. Step 3: Cross multiply
    612,762.42x = 845,584.86 × 354,598.02
  4. Step 4: Simplify right side
    612,762.42x = 299,842,717,097.98
  5. Step 5: Solve for x
    x = 299,842,717,097.98/612,762.42
  6. Step 6: Final answer
    x = 489,329.48

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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.