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Finding the Fourth Proportional to 660,526.32, 911,526.26 and 374,101.76

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Solution

The fourth proportional to 660,526.32, 911,526.26 and 374,101.76 is: 516,260.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,526.32 : 911,526.26 = 374,101.76 : x
  2. Step 2: Convert to fraction form
    660,526.32/911,526.26 = 374,101.76/x
  3. Step 3: Cross multiply
    660,526.32x = 911,526.26 × 374,101.76
  4. Step 4: Simplify right side
    660,526.32x = 341,003,578,152.22
  5. Step 5: Solve for x
    x = 341,003,578,152.22/660,526.32
  6. Step 6: Final answer
    x = 516,260.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.