Home / 1,528,110.21-2,292,156.88-390,870.66

Finding the Fourth Proportional to 1,528,110.21, 2,292,156.88 and 390,870.66

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Solution

The fourth proportional to 1,528,110.21, 2,292,156.88 and 390,870.66 is: 586,303.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,110.21 : 2,292,156.88 = 390,870.66 : x
  2. Step 2: Convert to fraction form
    1,528,110.21/2,292,156.88 = 390,870.66/x
  3. Step 3: Cross multiply
    1,528,110.21x = 2,292,156.88 × 390,870.66
  4. Step 4: Simplify right side
    1,528,110.21x = 895,936,882,326.20
  5. Step 5: Solve for x
    x = 895,936,882,326.20/1,528,110.21
  6. Step 6: Final answer
    x = 586,303.84

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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.