Home / 780,001.70-1,168,909.05-620,350.70

Finding the Fourth Proportional to 780,001.70, 1,168,909.05 and 620,350.70

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Solution

The fourth proportional to 780,001.70, 1,168,909.05 and 620,350.70 is: 929,656.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,001.70 : 1,168,909.05 = 620,350.70 : x
  2. Step 2: Convert to fraction form
    780,001.70/1,168,909.05 = 620,350.70/x
  3. Step 3: Cross multiply
    780,001.70x = 1,168,909.05 × 620,350.70
  4. Step 4: Simplify right side
    780,001.70x = 725,133,547,403.84
  5. Step 5: Solve for x
    x = 725,133,547,403.84/780,001.70
  6. Step 6: Final answer
    x = 929,656.37

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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.