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Finding the Fourth Proportional to 705,452.22, 972,990.63 and 490,484.70

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Solution

The fourth proportional to 705,452.22, 972,990.63 and 490,484.70 is: 676,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,452.22 : 972,990.63 = 490,484.70 : x
  2. Step 2: Convert to fraction form
    705,452.22/972,990.63 = 490,484.70/x
  3. Step 3: Cross multiply
    705,452.22x = 972,990.63 × 490,484.70
  4. Step 4: Simplify right side
    705,452.22x = 477,237,017,258.36
  5. Step 5: Solve for x
    x = 477,237,017,258.36/705,452.22
  6. Step 6: Final answer
    x = 676,498.00

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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.