Home / 1,530,341.28-2,111,861.04-842,055.12

Finding the Fourth Proportional to 1,530,341.28, 2,111,861.04 and 842,055.12

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Solution

The fourth proportional to 1,530,341.28, 2,111,861.04 and 842,055.12 is: 1,162,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530,341.28 : 2,111,861.04 = 842,055.12 : x
  2. Step 2: Convert to fraction form
    1,530,341.28/2,111,861.04 = 842,055.12/x
  3. Step 3: Cross multiply
    1,530,341.28x = 2,111,861.04 × 842,055.12
  4. Step 4: Simplify right side
    1,530,341.28x = 1,778,303,401,460.53
  5. Step 5: Solve for x
    x = 1,778,303,401,460.53/1,530,341.28
  6. Step 6: Final answer
    x = 1,162,030.60

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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.