Home / 1,572,811.36-2,359,218.48-390,859.36

Finding the Fourth Proportional to 1,572,811.36, 2,359,218.48 and 390,859.36

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Solution

The fourth proportional to 1,572,811.36, 2,359,218.48 and 390,859.36 is: 586,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,811.36 : 2,359,218.48 = 390,859.36 : x
  2. Step 2: Convert to fraction form
    1,572,811.36/2,359,218.48 = 390,859.36/x
  3. Step 3: Cross multiply
    1,572,811.36x = 2,359,218.48 × 390,859.36
  4. Step 4: Simplify right side
    1,572,811.36x = 922,122,625,192.97
  5. Step 5: Solve for x
    x = 922,122,625,192.97/1,572,811.36
  6. Step 6: Final answer
    x = 586,289.40

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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.