Home / 740,143.85-1,021,341.50-417,885.75

Finding the Fourth Proportional to 740,143.85, 1,021,341.50 and 417,885.75

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Solution

The fourth proportional to 740,143.85, 1,021,341.50 and 417,885.75 is: 576,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,143.85 : 1,021,341.50 = 417,885.75 : x
  2. Step 2: Convert to fraction form
    740,143.85/1,021,341.50 = 417,885.75/x
  3. Step 3: Cross multiply
    740,143.85x = 1,021,341.50 × 417,885.75
  4. Step 4: Simplify right side
    740,143.85x = 426,804,056,644.20
  5. Step 5: Solve for x
    x = 426,804,056,644.20/740,143.85
  6. Step 6: Final answer
    x = 576,650.15

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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.