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Finding the Fourth Proportional to 779,712, 1,076,204.16 and 508,456.32

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Solution

The fourth proportional to 779,712, 1,076,204.16 and 508,456.32 is: 701,801.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,712 : 1,076,204.16 = 508,456.32 : x
  2. Step 2: Convert to fraction form
    779,712/1,076,204.16 = 508,456.32/x
  3. Step 3: Cross multiply
    779,712x = 1,076,204.16 × 508,456.32
  4. Step 4: Simplify right side
    779,712x = 547,202,806,762.29
  5. Step 5: Solve for x
    x = 547,202,806,762.29/779,712
  6. Step 6: Final answer
    x = 701,801.19

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1.5x scale

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.