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Finding the Fourth Proportional to 565,480.66, 780,323.49 and 310,848.34

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Solution

The fourth proportional to 565,480.66, 780,323.49 and 310,848.34 is: 428,948.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,480.66 : 780,323.49 = 310,848.34 : x
  2. Step 2: Convert to fraction form
    565,480.66/780,323.49 = 310,848.34/x
  3. Step 3: Cross multiply
    565,480.66x = 780,323.49 × 310,848.34
  4. Step 4: Simplify right side
    565,480.66x = 242,562,261,529.51
  5. Step 5: Solve for x
    x = 242,562,261,529.51/565,480.66
  6. Step 6: Final answer
    x = 428,948.82

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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.