Home / 1,578,128.40-2,365,637.40-779,533.20

Finding the Fourth Proportional to 1,578,128.40, 2,365,637.40 and 779,533.20

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Solution

The fourth proportional to 1,578,128.40, 2,365,637.40 and 779,533.20 is: 1,168,531.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,128.40 : 2,365,637.40 = 779,533.20 : x
  2. Step 2: Convert to fraction form
    1,578,128.40/2,365,637.40 = 779,533.20/x
  3. Step 3: Cross multiply
    1,578,128.40x = 2,365,637.40 × 779,533.20
  4. Step 4: Simplify right side
    1,578,128.40x = 1,844,092,892,461.68
  5. Step 5: Solve for x
    x = 1,844,092,892,461.68/1,578,128.40
  6. Step 6: Final answer
    x = 1,168,531.59

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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.