Home / 746,148.64-1,029,681.72-406,616.80

Finding the Fourth Proportional to 746,148.64, 1,029,681.72 and 406,616.80

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Solution

The fourth proportional to 746,148.64, 1,029,681.72 and 406,616.80 is: 561,129.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,148.64 : 1,029,681.72 = 406,616.80 : x
  2. Step 2: Convert to fraction form
    746,148.64/1,029,681.72 = 406,616.80/x
  3. Step 3: Cross multiply
    746,148.64x = 1,029,681.72 × 406,616.80
  4. Step 4: Simplify right side
    746,148.64x = 418,685,886,004.90
  5. Step 5: Solve for x
    x = 418,685,886,004.90/746,148.64
  6. Step 6: Final answer
    x = 561,129.33

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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.