Home / 717,154.16-1,075,480.47-211,580.91

Finding the Fourth Proportional to 717,154.16, 1,075,480.47 and 211,580.91

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Solution

The fourth proportional to 717,154.16, 1,075,480.47 and 211,580.91 is: 317,297.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,154.16 : 1,075,480.47 = 211,580.91 : x
  2. Step 2: Convert to fraction form
    717,154.16/1,075,480.47 = 211,580.91/x
  3. Step 3: Cross multiply
    717,154.16x = 1,075,480.47 × 211,580.91
  4. Step 4: Simplify right side
    717,154.16x = 227,551,136,529.83
  5. Step 5: Solve for x
    x = 227,551,136,529.83/717,154.16
  6. Step 6: Final answer
    x = 317,297.38

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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.