Home / 840,485.57-1,159,888.49-458,512.04

Finding the Fourth Proportional to 840,485.57, 1,159,888.49 and 458,512.04

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Solution

The fourth proportional to 840,485.57, 1,159,888.49 and 458,512.04 is: 632,756.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,485.57 : 1,159,888.49 = 458,512.04 : x
  2. Step 2: Convert to fraction form
    840,485.57/1,159,888.49 = 458,512.04/x
  3. Step 3: Cross multiply
    840,485.57x = 1,159,888.49 × 458,512.04
  4. Step 4: Simplify right side
    840,485.57x = 531,822,829,630.42
  5. Step 5: Solve for x
    x = 531,822,829,630.42/840,485.57
  6. Step 6: Final answer
    x = 632,756.65

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1.5x scale

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.