Home / 740,172.86-1,021,381.53-417,914.76

Finding the Fourth Proportional to 740,172.86, 1,021,381.53 and 417,914.76

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Solution

The fourth proportional to 740,172.86, 1,021,381.53 and 417,914.76 is: 576,690.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,172.86 : 1,021,381.53 = 417,914.76 : x
  2. Step 2: Convert to fraction form
    740,172.86/1,021,381.53 = 417,914.76/x
  3. Step 3: Cross multiply
    740,172.86x = 1,021,381.53 × 417,914.76
  4. Step 4: Simplify right side
    740,172.86x = 426,850,417,500.78
  5. Step 5: Solve for x
    x = 426,850,417,500.78/740,172.86
  6. Step 6: Final answer
    x = 576,690.18

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Double scale
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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.