Home / 934,640.64-1,402,007.40-455,308.56

Finding the Fourth Proportional to 934,640.64, 1,402,007.40 and 455,308.56

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Solution

The fourth proportional to 934,640.64, 1,402,007.40 and 455,308.56 is: 682,985.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,640.64 : 1,402,007.40 = 455,308.56 : x
  2. Step 2: Convert to fraction form
    934,640.64/1,402,007.40 = 455,308.56/x
  3. Step 3: Cross multiply
    934,640.64x = 1,402,007.40 × 455,308.56
  4. Step 4: Simplify right side
    934,640.64x = 638,345,970,403.34
  5. Step 5: Solve for x
    x = 638,345,970,403.34/934,640.64
  6. Step 6: Final answer
    x = 682,985.46

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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.