Home / 1,390,443.96-2,089,159.86-885,230.48

Finding the Fourth Proportional to 1,390,443.96, 2,089,159.86 and 885,230.48

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Solution

The fourth proportional to 1,390,443.96, 2,089,159.86 and 885,230.48 is: 1,330,070.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,443.96 : 2,089,159.86 = 885,230.48 : x
  2. Step 2: Convert to fraction form
    1,390,443.96/2,089,159.86 = 885,230.48/x
  3. Step 3: Cross multiply
    1,390,443.96x = 2,089,159.86 × 885,230.48
  4. Step 4: Simplify right side
    1,390,443.96x = 1,849,387,985,664.53
  5. Step 5: Solve for x
    x = 1,849,387,985,664.53/1,390,443.96
  6. Step 6: Final answer
    x = 1,330,070.14

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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.