Home / 988,019.13-1,363,448.64-558,289.98

Finding the Fourth Proportional to 988,019.13, 1,363,448.64 and 558,289.98

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Solution

The fourth proportional to 988,019.13, 1,363,448.64 and 558,289.98 is: 770,430.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,019.13 : 1,363,448.64 = 558,289.98 : x
  2. Step 2: Convert to fraction form
    988,019.13/1,363,448.64 = 558,289.98/x
  3. Step 3: Cross multiply
    988,019.13x = 1,363,448.64 × 558,289.98
  4. Step 4: Simplify right side
    988,019.13x = 761,199,713,956.63
  5. Step 5: Solve for x
    x = 761,199,713,956.63/988,019.13
  6. Step 6: Final answer
    x = 770,430.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.