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Finding the Fourth Proportional to 868,069.70, 1,301,910.15 and 570,637.70

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Solution

The fourth proportional to 868,069.70, 1,301,910.15 and 570,637.70 is: 855,828.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,069.70 : 1,301,910.15 = 570,637.70 : x
  2. Step 2: Convert to fraction form
    868,069.70/1,301,910.15 = 570,637.70/x
  3. Step 3: Cross multiply
    868,069.70x = 1,301,910.15 × 570,637.70
  4. Step 4: Simplify right side
    868,069.70x = 742,919,013,602.66
  5. Step 5: Solve for x
    x = 742,919,013,602.66/868,069.70
  6. Step 6: Final answer
    x = 855,828.76

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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.