Home / 877,487.13-1,316,064.22-427,755.69

Finding the Fourth Proportional to 877,487.13, 1,316,064.22 and 427,755.69

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Solution

The fourth proportional to 877,487.13, 1,316,064.22 and 427,755.69 is: 641,552.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,487.13 : 1,316,064.22 = 427,755.69 : x
  2. Step 2: Convert to fraction form
    877,487.13/1,316,064.22 = 427,755.69/x
  3. Step 3: Cross multiply
    877,487.13x = 1,316,064.22 × 427,755.69
  4. Step 4: Simplify right side
    877,487.13x = 562,953,958,510.41
  5. Step 5: Solve for x
    x = 562,953,958,510.41/877,487.13
  6. Step 6: Final answer
    x = 641,552.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.