Home / 724,814.62-1,000,257.72-402,554.90

Finding the Fourth Proportional to 724,814.62, 1,000,257.72 and 402,554.90

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Solution

The fourth proportional to 724,814.62, 1,000,257.72 and 402,554.90 is: 555,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,814.62 : 1,000,257.72 = 402,554.90 : x
  2. Step 2: Convert to fraction form
    724,814.62/1,000,257.72 = 402,554.90/x
  3. Step 3: Cross multiply
    724,814.62x = 1,000,257.72 × 402,554.90
  4. Step 4: Simplify right side
    724,814.62x = 402,658,646,448.83
  5. Step 5: Solve for x
    x = 402,658,646,448.83/724,814.62
  6. Step 6: Final answer
    x = 555,533.28

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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.