Home / 780,590.49-1,076,820.26-522,478.41

Finding the Fourth Proportional to 780,590.49, 1,076,820.26 and 522,478.41

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Solution

The fourth proportional to 780,590.49, 1,076,820.26 and 522,478.41 is: 720,756.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,590.49 : 1,076,820.26 = 522,478.41 : x
  2. Step 2: Convert to fraction form
    780,590.49/1,076,820.26 = 522,478.41/x
  3. Step 3: Cross multiply
    780,590.49x = 1,076,820.26 × 522,478.41
  4. Step 4: Simplify right side
    780,590.49x = 562,615,334,688.19
  5. Step 5: Solve for x
    x = 562,615,334,688.19/780,590.49
  6. Step 6: Final answer
    x = 720,756.07

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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.