Home / 927,420.28-1,391,137.84-358,866.35

Finding the Fourth Proportional to 927,420.28, 1,391,137.84 and 358,866.35

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Solution

The fourth proportional to 927,420.28, 1,391,137.84 and 358,866.35 is: 538,302.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,420.28 : 1,391,137.84 = 358,866.35 : x
  2. Step 2: Convert to fraction form
    927,420.28/1,391,137.84 = 358,866.35/x
  3. Step 3: Cross multiply
    927,420.28x = 1,391,137.84 × 358,866.35
  4. Step 4: Simplify right side
    927,420.28x = 499,232,557,697.35
  5. Step 5: Solve for x
    x = 499,232,557,697.35/927,420.28
  6. Step 6: Final answer
    x = 538,302.39

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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.