Home / 1,316,271.57-1,974,407.34-318,999.57

Finding the Fourth Proportional to 1,316,271.57, 1,974,407.34 and 318,999.57

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Solution

The fourth proportional to 1,316,271.57, 1,974,407.34 and 318,999.57 is: 478,499.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,271.57 : 1,974,407.34 = 318,999.57 : x
  2. Step 2: Convert to fraction form
    1,316,271.57/1,974,407.34 = 318,999.57/x
  3. Step 3: Cross multiply
    1,316,271.57x = 1,974,407.34 × 318,999.57
  4. Step 4: Simplify right side
    1,316,271.57x = 629,835,092,464.84
  5. Step 5: Solve for x
    x = 629,835,092,464.84/1,316,271.57
  6. Step 6: Final answer
    x = 478,499.35

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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.