Home / 685,480.77-945,829.04-430,684.34

Finding the Fourth Proportional to 685,480.77, 945,829.04 and 430,684.34

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Solution

The fourth proportional to 685,480.77, 945,829.04 and 430,684.34 is: 594,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,480.77 : 945,829.04 = 430,684.34 : x
  2. Step 2: Convert to fraction form
    685,480.77/945,829.04 = 430,684.34/x
  3. Step 3: Cross multiply
    685,480.77x = 945,829.04 × 430,684.34
  4. Step 4: Simplify right side
    685,480.77x = 407,353,748,962.67
  5. Step 5: Solve for x
    x = 407,353,748,962.67/685,480.77
  6. Step 6: Final answer
    x = 594,259.92

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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.