Home / 1,407,064.40-2,109,041.40-776,430.80

Finding the Fourth Proportional to 1,407,064.40, 2,109,041.40 and 776,430.80

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Solution

The fourth proportional to 1,407,064.40, 2,109,041.40 and 776,430.80 is: 1,163,788.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,064.40 : 2,109,041.40 = 776,430.80 : x
  2. Step 2: Convert to fraction form
    1,407,064.40/2,109,041.40 = 776,430.80/x
  3. Step 3: Cross multiply
    1,407,064.40x = 2,109,041.40 × 776,430.80
  4. Step 4: Simplify right side
    1,407,064.40x = 1,637,524,701,435.12
  5. Step 5: Solve for x
    x = 1,637,524,701,435.12/1,407,064.40
  6. Step 6: Final answer
    x = 1,163,788.03

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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.