Home / 696,057.60-1,042,012.80-415,430.40

Finding the Fourth Proportional to 696,057.60, 1,042,012.80 and 415,430.40

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Solution

The fourth proportional to 696,057.60, 1,042,012.80 and 415,430.40 is: 621,908.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,057.60 : 1,042,012.80 = 415,430.40 : x
  2. Step 2: Convert to fraction form
    696,057.60/1,042,012.80 = 415,430.40/x
  3. Step 3: Cross multiply
    696,057.60x = 1,042,012.80 × 415,430.40
  4. Step 4: Simplify right side
    696,057.60x = 432,883,794,309.12
  5. Step 5: Solve for x
    x = 432,883,794,309.12/696,057.60
  6. Step 6: Final answer
    x = 621,908.01

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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.