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Finding the Fourth Proportional to 660,666.56, 910,852.29 and 476,750.78

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Solution

The fourth proportional to 660,666.56, 910,852.29 and 476,750.78 is: 657,290.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,666.56 : 910,852.29 = 476,750.78 : x
  2. Step 2: Convert to fraction form
    660,666.56/910,852.29 = 476,750.78/x
  3. Step 3: Cross multiply
    660,666.56x = 910,852.29 × 476,750.78
  4. Step 4: Simplify right side
    660,666.56x = 434,249,539,722.29
  5. Step 5: Solve for x
    x = 434,249,539,722.29/660,666.56
  6. Step 6: Final answer
    x = 657,290.02

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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.