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Finding the Fourth Proportional to 559,831.50, 772,668.72 and 330,374.70

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Solution

The fourth proportional to 559,831.50, 772,668.72 and 330,374.70 is: 455,976.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,831.50 : 772,668.72 = 330,374.70 : x
  2. Step 2: Convert to fraction form
    559,831.50/772,668.72 = 330,374.70/x
  3. Step 3: Cross multiply
    559,831.50x = 772,668.72 × 330,374.70
  4. Step 4: Simplify right side
    559,831.50x = 255,270,196,569.38
  5. Step 5: Solve for x
    x = 255,270,196,569.38/559,831.50
  6. Step 6: Final answer
    x = 455,976.84

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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.