Home / 626,726.40-940,089.60-477,427.20

Finding the Fourth Proportional to 626,726.40, 940,089.60 and 477,427.20

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Solution

The fourth proportional to 626,726.40, 940,089.60 and 477,427.20 is: 716,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,726.40 : 940,089.60 = 477,427.20 : x
  2. Step 2: Convert to fraction form
    626,726.40/940,089.60 = 477,427.20/x
  3. Step 3: Cross multiply
    626,726.40x = 940,089.60 × 477,427.20
  4. Step 4: Simplify right side
    626,726.40x = 448,824,345,477.12
  5. Step 5: Solve for x
    x = 448,824,345,477.12/626,726.40
  6. Step 6: Final answer
    x = 716,140.80

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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.