Home / 900,377.48-1,242,560.72-518,527.28

Finding the Fourth Proportional to 900,377.48, 1,242,560.72 and 518,527.28

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Solution

The fourth proportional to 900,377.48, 1,242,560.72 and 518,527.28 is: 715,590.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,377.48 : 1,242,560.72 = 518,527.28 : x
  2. Step 2: Convert to fraction form
    900,377.48/1,242,560.72 = 518,527.28/x
  3. Step 3: Cross multiply
    900,377.48x = 1,242,560.72 × 518,527.28
  4. Step 4: Simplify right side
    900,377.48x = 644,301,630,376.44
  5. Step 5: Solve for x
    x = 644,301,630,376.44/900,377.48
  6. Step 6: Final answer
    x = 715,590.57

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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.