Home / 740,122.64-1,021,260.53-413,395.40

Finding the Fourth Proportional to 740,122.64, 1,021,260.53 and 413,395.40

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Solution

The fourth proportional to 740,122.64, 1,021,260.53 and 413,395.40 is: 570,424.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,122.64 : 1,021,260.53 = 413,395.40 : x
  2. Step 2: Convert to fraction form
    740,122.64/1,021,260.53 = 413,395.40/x
  3. Step 3: Cross multiply
    740,122.64x = 1,021,260.53 × 413,395.40
  4. Step 4: Simplify right side
    740,122.64x = 422,184,398,130.28
  5. Step 5: Solve for x
    x = 422,184,398,130.28/740,122.64
  6. Step 6: Final answer
    x = 570,424.92

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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.