Home / 685,931.86-946,592.61-380,014.75

Finding the Fourth Proportional to 685,931.86, 946,592.61 and 380,014.75

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Solution

The fourth proportional to 685,931.86, 946,592.61 and 380,014.75 is: 524,424.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,931.86 : 946,592.61 = 380,014.75 : x
  2. Step 2: Convert to fraction form
    685,931.86/946,592.61 = 380,014.75/x
  3. Step 3: Cross multiply
    685,931.86x = 946,592.61 × 380,014.75
  4. Step 4: Simplify right side
    685,931.86x = 359,719,154,041.00
  5. Step 5: Solve for x
    x = 359,719,154,041.00/685,931.86
  6. Step 6: Final answer
    x = 524,424.04

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Double scale
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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.