Home / 912,971.40-1,369,457.10-897,419.40

Finding the Fourth Proportional to 912,971.40, 1,369,457.10 and 897,419.40

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Solution

The fourth proportional to 912,971.40, 1,369,457.10 and 897,419.40 is: 1,346,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,971.40 : 1,369,457.10 = 897,419.40 : x
  2. Step 2: Convert to fraction form
    912,971.40/1,369,457.10 = 897,419.40/x
  3. Step 3: Cross multiply
    912,971.40x = 1,369,457.10 × 897,419.40
  4. Step 4: Simplify right side
    912,971.40x = 1,228,977,369,007.74
  5. Step 5: Solve for x
    x = 1,228,977,369,007.74/912,971.40
  6. Step 6: Final answer
    x = 1,346,129.10

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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.