Home / 1,174,802.16-1,621,307.20-665,508.72

Finding the Fourth Proportional to 1,174,802.16, 1,621,307.20 and 665,508.72

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Solution

The fourth proportional to 1,174,802.16, 1,621,307.20 and 665,508.72 is: 918,447.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174,802.16 : 1,621,307.20 = 665,508.72 : x
  2. Step 2: Convert to fraction form
    1,174,802.16/1,621,307.20 = 665,508.72/x
  3. Step 3: Cross multiply
    1,174,802.16x = 1,621,307.20 × 665,508.72
  4. Step 4: Simplify right side
    1,174,802.16x = 1,078,994,079,398.78
  5. Step 5: Solve for x
    x = 1,078,994,079,398.78/1,174,802.16
  6. Step 6: Final answer
    x = 918,447.48

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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.