Home / 740,121.64-1,021,259.15-413,394.40

Finding the Fourth Proportional to 740,121.64, 1,021,259.15 and 413,394.40

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Solution

The fourth proportional to 740,121.64, 1,021,259.15 and 413,394.40 is: 570,423.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,121.64 : 1,021,259.15 = 413,394.40 : x
  2. Step 2: Convert to fraction form
    740,121.64/1,021,259.15 = 413,394.40/x
  3. Step 3: Cross multiply
    740,121.64x = 1,021,259.15 × 413,394.40
  4. Step 4: Simplify right side
    740,121.64x = 422,182,806,385.49
  5. Step 5: Solve for x
    x = 422,182,806,385.49/740,121.64
  6. Step 6: Final answer
    x = 570,423.54

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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.