Home / 612,966.58-845,820.38-340,965.74

Finding the Fourth Proportional to 612,966.58, 845,820.38 and 340,965.74

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Solution

The fourth proportional to 612,966.58, 845,820.38 and 340,965.74 is: 470,491.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,966.58 : 845,820.38 = 340,965.74 : x
  2. Step 2: Convert to fraction form
    612,966.58/845,820.38 = 340,965.74/x
  3. Step 3: Cross multiply
    612,966.58x = 845,820.38 × 340,965.74
  4. Step 4: Simplify right side
    612,966.58x = 288,395,774,740.75
  5. Step 5: Solve for x
    x = 288,395,774,740.75/612,966.58
  6. Step 6: Final answer
    x = 470,491.84

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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.