Home / 1,238,220.81-1,857,019.50-479,802.02

Finding the Fourth Proportional to 1,238,220.81, 1,857,019.50 and 479,802.02

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Solution

The fourth proportional to 1,238,220.81, 1,857,019.50 and 479,802.02 is: 719,582.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,220.81 : 1,857,019.50 = 479,802.02 : x
  2. Step 2: Convert to fraction form
    1,238,220.81/1,857,019.50 = 479,802.02/x
  3. Step 3: Cross multiply
    1,238,220.81x = 1,857,019.50 × 479,802.02
  4. Step 4: Simplify right side
    1,238,220.81x = 891,001,697,994.29
  5. Step 5: Solve for x
    x = 891,001,697,994.29/1,238,220.81
  6. Step 6: Final answer
    x = 719,582.24

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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.