Home / 909,284.72-1,254,802.91-501,422.40

Finding the Fourth Proportional to 909,284.72, 1,254,802.91 and 501,422.40

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Solution

The fourth proportional to 909,284.72, 1,254,802.91 and 501,422.40 is: 691,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,284.72 : 1,254,802.91 = 501,422.40 : x
  2. Step 2: Convert to fraction form
    909,284.72/1,254,802.91 = 501,422.40/x
  3. Step 3: Cross multiply
    909,284.72x = 1,254,802.91 × 501,422.40
  4. Step 4: Simplify right side
    909,284.72x = 629,186,284,152.07
  5. Step 5: Solve for x
    x = 629,186,284,152.07/909,284.72
  6. Step 6: Final answer
    x = 691,957.40

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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.