Home / 1,430,990.28-1,975,032.60-819,143.04

Finding the Fourth Proportional to 1,430,990.28, 1,975,032.60 and 819,143.04

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Solution

The fourth proportional to 1,430,990.28, 1,975,032.60 and 819,143.04 is: 1,130,569.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,990.28 : 1,975,032.60 = 819,143.04 : x
  2. Step 2: Convert to fraction form
    1,430,990.28/1,975,032.60 = 819,143.04/x
  3. Step 3: Cross multiply
    1,430,990.28x = 1,975,032.60 × 819,143.04
  4. Step 4: Simplify right side
    1,430,990.28x = 1,617,834,208,063.10
  5. Step 5: Solve for x
    x = 1,617,834,208,063.10/1,430,990.28
  6. Step 6: Final answer
    x = 1,130,569.67

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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.