Home / 970,921.08-1,455,441.21-371,420.64

Finding the Fourth Proportional to 970,921.08, 1,455,441.21 and 371,420.64

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Solution

The fourth proportional to 970,921.08, 1,455,441.21 and 371,420.64 is: 556,771.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,921.08 : 1,455,441.21 = 371,420.64 : x
  2. Step 2: Convert to fraction form
    970,921.08/1,455,441.21 = 371,420.64/x
  3. Step 3: Cross multiply
    970,921.08x = 1,455,441.21 × 371,420.64
  4. Step 4: Simplify right side
    970,921.08x = 540,580,905,700.57
  5. Step 5: Solve for x
    x = 540,580,905,700.57/970,921.08
  6. Step 6: Final answer
    x = 556,771.21

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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.