Home / 710,342.60-1,066,118.70-289,920.20

Finding the Fourth Proportional to 710,342.60, 1,066,118.70 and 289,920.20

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Solution

The fourth proportional to 710,342.60, 1,066,118.70 and 289,920.20 is: 435,127.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,342.60 : 1,066,118.70 = 289,920.20 : x
  2. Step 2: Convert to fraction form
    710,342.60/1,066,118.70 = 289,920.20/x
  3. Step 3: Cross multiply
    710,342.60x = 1,066,118.70 × 289,920.20
  4. Step 4: Simplify right side
    710,342.60x = 309,089,346,727.74
  5. Step 5: Solve for x
    x = 309,089,346,727.74/710,342.60
  6. Step 6: Final answer
    x = 435,127.14

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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.