Home / 717,718.68-1,076,603.40-380,303.64

Finding the Fourth Proportional to 717,718.68, 1,076,603.40 and 380,303.64

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Solution

The fourth proportional to 717,718.68, 1,076,603.40 and 380,303.64 is: 570,468.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,718.68 : 1,076,603.40 = 380,303.64 : x
  2. Step 2: Convert to fraction form
    717,718.68/1,076,603.40 = 380,303.64/x
  3. Step 3: Cross multiply
    717,718.68x = 1,076,603.40 × 380,303.64
  4. Step 4: Simplify right side
    717,718.68x = 409,436,191,856.38
  5. Step 5: Solve for x
    x = 409,436,191,856.38/717,718.68
  6. Step 6: Final answer
    x = 570,468.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.