Home / 917,484.19-1,266,128.21-515,076.19

Finding the Fourth Proportional to 917,484.19, 1,266,128.21 and 515,076.19

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Solution

The fourth proportional to 917,484.19, 1,266,128.21 and 515,076.19 is: 710,805.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,484.19 : 1,266,128.21 = 515,076.19 : x
  2. Step 2: Convert to fraction form
    917,484.19/1,266,128.21 = 515,076.19/x
  3. Step 3: Cross multiply
    917,484.19x = 1,266,128.21 × 515,076.19
  4. Step 4: Simplify right side
    917,484.19x = 652,152,492,580.69
  5. Step 5: Solve for x
    x = 652,152,492,580.69/917,484.19
  6. Step 6: Final answer
    x = 710,805.16

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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.