Home / 566,283.08-781,470.77-311,634.28

Finding the Fourth Proportional to 566,283.08, 781,470.77 and 311,634.28

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Solution

The fourth proportional to 566,283.08, 781,470.77 and 311,634.28 is: 430,055.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,283.08 : 781,470.77 = 311,634.28 : x
  2. Step 2: Convert to fraction form
    566,283.08/781,470.77 = 311,634.28/x
  3. Step 3: Cross multiply
    566,283.08x = 781,470.77 × 311,634.28
  4. Step 4: Simplify right side
    566,283.08x = 243,533,075,284.47
  5. Step 5: Solve for x
    x = 243,533,075,284.47/566,283.08
  6. Step 6: Final answer
    x = 430,055.36

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Double scale
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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.