Home / 877,336.34-1,316,004.44-478,312.65

Finding the Fourth Proportional to 877,336.34, 1,316,004.44 and 478,312.65

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Solution

The fourth proportional to 877,336.34, 1,316,004.44 and 478,312.65 is: 717,468.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,336.34 : 1,316,004.44 = 478,312.65 : x
  2. Step 2: Convert to fraction form
    877,336.34/1,316,004.44 = 478,312.65/x
  3. Step 3: Cross multiply
    877,336.34x = 1,316,004.44 × 478,312.65
  4. Step 4: Simplify right side
    877,336.34x = 629,461,568,716.60
  5. Step 5: Solve for x
    x = 629,461,568,716.60/877,336.34
  6. Step 6: Final answer
    x = 717,468.94

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Double scale
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Similar ratio
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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.