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Finding the Fourth Proportional to 660,019.56, 910,848.90 and 373,536.36

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Solution

The fourth proportional to 660,019.56, 910,848.90 and 373,536.36 is: 515,492.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,019.56 : 910,848.90 = 373,536.36 : x
  2. Step 2: Convert to fraction form
    660,019.56/910,848.90 = 373,536.36/x
  3. Step 3: Cross multiply
    660,019.56x = 910,848.90 × 373,536.36
  4. Step 4: Simplify right side
    660,019.56x = 340,235,182,616.00
  5. Step 5: Solve for x
    x = 340,235,182,616.00/660,019.56
  6. Step 6: Final answer
    x = 515,492.58

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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.