Home / 740,021.33-1,021,228.98-417,734.21

Finding the Fourth Proportional to 740,021.33, 1,021,228.98 and 417,734.21

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Solution

The fourth proportional to 740,021.33, 1,021,228.98 and 417,734.21 is: 576,472.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,021.33 : 1,021,228.98 = 417,734.21 : x
  2. Step 2: Convert to fraction form
    740,021.33/1,021,228.98 = 417,734.21/x
  3. Step 3: Cross multiply
    740,021.33x = 1,021,228.98 × 417,734.21
  4. Step 4: Simplify right side
    740,021.33x = 426,602,281,189.41
  5. Step 5: Solve for x
    x = 426,602,281,189.41/740,021.33
  6. Step 6: Final answer
    x = 576,472.95

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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.