Home / 900,366.40-1,242,612.84-518,467.60

Finding the Fourth Proportional to 900,366.40, 1,242,612.84 and 518,467.60

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Solution

The fourth proportional to 900,366.40, 1,242,612.84 and 518,467.60 is: 715,547.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,366.40 : 1,242,612.84 = 518,467.60 : x
  2. Step 2: Convert to fraction form
    900,366.40/1,242,612.84 = 518,467.60/x
  3. Step 3: Cross multiply
    900,366.40x = 1,242,612.84 × 518,467.60
  4. Step 4: Simplify right side
    900,366.40x = 644,254,496,883.98
  5. Step 5: Solve for x
    x = 644,254,496,883.98/900,366.40
  6. Step 6: Final answer
    x = 715,547.02

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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.