Home / 612,612.64-845,281.56-357,914.62

Finding the Fourth Proportional to 612,612.64, 845,281.56 and 357,914.62

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Solution

The fourth proportional to 612,612.64, 845,281.56 and 357,914.62 is: 493,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,612.64 : 845,281.56 = 357,914.62 : x
  2. Step 2: Convert to fraction form
    612,612.64/845,281.56 = 357,914.62/x
  3. Step 3: Cross multiply
    612,612.64x = 845,281.56 × 357,914.62
  4. Step 4: Simplify right side
    612,612.64x = 302,538,628,340.41
  5. Step 5: Solve for x
    x = 302,538,628,340.41/612,612.64
  6. Step 6: Final answer
    x = 493,849.80

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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.