Home / 900,235.32-1,242,477.50-518,483.12

Finding the Fourth Proportional to 900,235.32, 1,242,477.50 and 518,483.12

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Solution

The fourth proportional to 900,235.32, 1,242,477.50 and 518,483.12 is: 715,594.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,235.32 : 1,242,477.50 = 518,483.12 : x
  2. Step 2: Convert to fraction form
    900,235.32/1,242,477.50 = 518,483.12/x
  3. Step 3: Cross multiply
    900,235.32x = 1,242,477.50 × 518,483.12
  4. Step 4: Simplify right side
    900,235.32x = 644,203,610,729.80
  5. Step 5: Solve for x
    x = 644,203,610,729.80/900,235.32
  6. Step 6: Final answer
    x = 715,594.69

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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.