Home / 1,140,416.64-1,573,824.36-631,119.18

Finding the Fourth Proportional to 1,140,416.64, 1,573,824.36 and 631,119.18

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Solution

The fourth proportional to 1,140,416.64, 1,573,824.36 and 631,119.18 is: 870,971.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,416.64 : 1,573,824.36 = 631,119.18 : x
  2. Step 2: Convert to fraction form
    1,140,416.64/1,573,824.36 = 631,119.18/x
  3. Step 3: Cross multiply
    1,140,416.64x = 1,573,824.36 × 631,119.18
  4. Step 4: Simplify right side
    1,140,416.64x = 993,270,739,547.23
  5. Step 5: Solve for x
    x = 993,270,739,547.23/1,140,416.64
  6. Step 6: Final answer
    x = 870,971.81

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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.