Home / 670,081.84-1,005,271.02-220,784.56

Finding the Fourth Proportional to 670,081.84, 1,005,271.02 and 220,784.56

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Solution

The fourth proportional to 670,081.84, 1,005,271.02 and 220,784.56 is: 331,225.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,081.84 : 1,005,271.02 = 220,784.56 : x
  2. Step 2: Convert to fraction form
    670,081.84/1,005,271.02 = 220,784.56/x
  3. Step 3: Cross multiply
    670,081.84x = 1,005,271.02 × 220,784.56
  4. Step 4: Simplify right side
    670,081.84x = 221,948,319,831.45
  5. Step 5: Solve for x
    x = 221,948,319,831.45/670,081.84
  6. Step 6: Final answer
    x = 331,225.69

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Double scale
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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.