Home / 790,555.65-1,090,970.27-427,979.50

Finding the Fourth Proportional to 790,555.65, 1,090,970.27 and 427,979.50

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Solution

The fourth proportional to 790,555.65, 1,090,970.27 and 427,979.50 is: 590,613.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,555.65 : 1,090,970.27 = 427,979.50 : x
  2. Step 2: Convert to fraction form
    790,555.65/1,090,970.27 = 427,979.50/x
  3. Step 3: Cross multiply
    790,555.65x = 1,090,970.27 × 427,979.50
  4. Step 4: Simplify right side
    790,555.65x = 466,912,907,407.07
  5. Step 5: Solve for x
    x = 466,912,907,407.07/790,555.65
  6. Step 6: Final answer
    x = 590,613.59

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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.