Home / 485,784.20-670,390.81-270,901.19

Finding the Fourth Proportional to 485,784.20, 670,390.81 and 270,901.19

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Solution

The fourth proportional to 485,784.20, 670,390.81 and 270,901.19 is: 373,848.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,784.20 : 670,390.81 = 270,901.19 : x
  2. Step 2: Convert to fraction form
    485,784.20/670,390.81 = 270,901.19/x
  3. Step 3: Cross multiply
    485,784.20x = 670,390.81 × 270,901.19
  4. Step 4: Simplify right side
    485,784.20x = 181,609,668,194.06
  5. Step 5: Solve for x
    x = 181,609,668,194.06/485,784.20
  6. Step 6: Final answer
    x = 373,848.45

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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.