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Finding the Fourth Proportional to 720,460.86, 994,331.03 and 696,802.07

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Solution

The fourth proportional to 720,460.86, 994,331.03 and 696,802.07 is: 961,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,460.86 : 994,331.03 = 696,802.07 : x
  2. Step 2: Convert to fraction form
    720,460.86/994,331.03 = 696,802.07/x
  3. Step 3: Cross multiply
    720,460.86x = 994,331.03 × 696,802.07
  4. Step 4: Simplify right side
    720,460.86x = 692,851,918,971.05
  5. Step 5: Solve for x
    x = 692,851,918,971.05/720,460.86
  6. Step 6: Final answer
    x = 961,678.78

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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.