Home / 1,220,318.72-1,830,547.74-410,378.12

Finding the Fourth Proportional to 1,220,318.72, 1,830,547.74 and 410,378.12

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Solution

The fourth proportional to 1,220,318.72, 1,830,547.74 and 410,378.12 is: 615,590.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,318.72 : 1,830,547.74 = 410,378.12 : x
  2. Step 2: Convert to fraction form
    1,220,318.72/1,830,547.74 = 410,378.12/x
  3. Step 3: Cross multiply
    1,220,318.72x = 1,830,547.74 × 410,378.12
  4. Step 4: Simplify right side
    1,220,318.72x = 751,216,728,906.82
  5. Step 5: Solve for x
    x = 751,216,728,906.82/1,220,318.72
  6. Step 6: Final answer
    x = 615,590.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.