Home / 314,943.40-472,415.10-310,277.80

Finding the Fourth Proportional to 314,943.40, 472,415.10 and 310,277.80

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Solution

The fourth proportional to 314,943.40, 472,415.10 and 310,277.80 is: 465,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,943.40 : 472,415.10 = 310,277.80 : x
  2. Step 2: Convert to fraction form
    314,943.40/472,415.10 = 310,277.80/x
  3. Step 3: Cross multiply
    314,943.40x = 472,415.10 × 310,277.80
  4. Step 4: Simplify right side
    314,943.40x = 146,579,917,914.78
  5. Step 5: Solve for x
    x = 146,579,917,914.78/314,943.40
  6. Step 6: Final answer
    x = 465,416.70

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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.