Home / 989,971.40-1,484,980.14-242,023.88

Finding the Fourth Proportional to 989,971.40, 1,484,980.14 and 242,023.88

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Solution

The fourth proportional to 989,971.40, 1,484,980.14 and 242,023.88 is: 363,041.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,971.40 : 1,484,980.14 = 242,023.88 : x
  2. Step 2: Convert to fraction form
    989,971.40/1,484,980.14 = 242,023.88/x
  3. Step 3: Cross multiply
    989,971.40x = 1,484,980.14 × 242,023.88
  4. Step 4: Simplify right side
    989,971.40x = 359,400,655,205.74
  5. Step 5: Solve for x
    x = 359,400,655,205.74/989,971.40
  6. Step 6: Final answer
    x = 363,041.45

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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.