Home / 1,225,430.17-1,690,975.15-709,081.06

Finding the Fourth Proportional to 1,225,430.17, 1,690,975.15 and 709,081.06

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Solution

The fourth proportional to 1,225,430.17, 1,690,975.15 and 709,081.06 is: 978,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,430.17 : 1,690,975.15 = 709,081.06 : x
  2. Step 2: Convert to fraction form
    1,225,430.17/1,690,975.15 = 709,081.06/x
  3. Step 3: Cross multiply
    1,225,430.17x = 1,690,975.15 × 709,081.06
  4. Step 4: Simplify right side
    1,225,430.17x = 1,199,038,451,795.66
  5. Step 5: Solve for x
    x = 1,199,038,451,795.66/1,225,430.17
  6. Step 6: Final answer
    x = 978,463.30

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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.