Home / 438,023.60-657,035.40-360,263.60

Finding the Fourth Proportional to 438,023.60, 657,035.40 and 360,263.60

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Solution

The fourth proportional to 438,023.60, 657,035.40 and 360,263.60 is: 540,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,023.60 : 657,035.40 = 360,263.60 : x
  2. Step 2: Convert to fraction form
    438,023.60/657,035.40 = 360,263.60/x
  3. Step 3: Cross multiply
    438,023.60x = 657,035.40 × 360,263.60
  4. Step 4: Simplify right side
    438,023.60x = 236,705,938,531.44
  5. Step 5: Solve for x
    x = 236,705,938,531.44/438,023.60
  6. Step 6: Final answer
    x = 540,395.40

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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.