Home / 1,157,031.40-1,735,547.10-821,108.20

Finding the Fourth Proportional to 1,157,031.40, 1,735,547.10 and 821,108.20

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Solution

The fourth proportional to 1,157,031.40, 1,735,547.10 and 821,108.20 is: 1,231,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,031.40 : 1,735,547.10 = 821,108.20 : x
  2. Step 2: Convert to fraction form
    1,157,031.40/1,735,547.10 = 821,108.20/x
  3. Step 3: Cross multiply
    1,157,031.40x = 1,735,547.10 × 821,108.20
  4. Step 4: Simplify right side
    1,157,031.40x = 1,425,071,955,296.22
  5. Step 5: Solve for x
    x = 1,425,071,955,296.22/1,157,031.40
  6. Step 6: Final answer
    x = 1,231,662.30

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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.