Home / 779,967.84-1,076,375.28-478,328.16

Finding the Fourth Proportional to 779,967.84, 1,076,375.28 and 478,328.16

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Solution

The fourth proportional to 779,967.84, 1,076,375.28 and 478,328.16 is: 660,104.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,967.84 : 1,076,375.28 = 478,328.16 : x
  2. Step 2: Convert to fraction form
    779,967.84/1,076,375.28 = 478,328.16/x
  3. Step 3: Cross multiply
    779,967.84x = 1,076,375.28 × 478,328.16
  4. Step 4: Simplify right side
    779,967.84x = 514,860,607,151.89
  5. Step 5: Solve for x
    x = 514,860,607,151.89/779,967.84
  6. Step 6: Final answer
    x = 660,104.92

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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.