Home / 1,389,360.98-2,084,041.48-392,088.98

Finding the Fourth Proportional to 1,389,360.98, 2,084,041.48 and 392,088.98

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Solution

The fourth proportional to 1,389,360.98, 2,084,041.48 and 392,088.98 is: 588,133.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,360.98 : 2,084,041.48 = 392,088.98 : x
  2. Step 2: Convert to fraction form
    1,389,360.98/2,084,041.48 = 392,088.98/x
  3. Step 3: Cross multiply
    1,389,360.98x = 2,084,041.48 × 392,088.98
  4. Step 4: Simplify right side
    1,389,360.98x = 817,129,698,170.89
  5. Step 5: Solve for x
    x = 817,129,698,170.89/1,389,360.98
  6. Step 6: Final answer
    x = 588,133.47

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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.