Home / 912,980.64-1,369,795.20-407,495.52

Finding the Fourth Proportional to 912,980.64, 1,369,795.20 and 407,495.52

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Solution

The fourth proportional to 912,980.64, 1,369,795.20 and 407,495.52 is: 611,388.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,980.64 : 1,369,795.20 = 407,495.52 : x
  2. Step 2: Convert to fraction form
    912,980.64/1,369,795.20 = 407,495.52/x
  3. Step 3: Cross multiply
    912,980.64x = 1,369,795.20 × 407,495.52
  4. Step 4: Simplify right side
    912,980.64x = 558,185,407,317.50
  5. Step 5: Solve for x
    x = 558,185,407,317.50/912,980.64
  6. Step 6: Final answer
    x = 611,388.00

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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.