Home / 1,386,538.95-2,078,479.80-586,720.25

Finding the Fourth Proportional to 1,386,538.95, 2,078,479.80 and 586,720.25

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Solution

The fourth proportional to 1,386,538.95, 2,078,479.80 and 586,720.25 is: 879,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,538.95 : 2,078,479.80 = 586,720.25 : x
  2. Step 2: Convert to fraction form
    1,386,538.95/2,078,479.80 = 586,720.25/x
  3. Step 3: Cross multiply
    1,386,538.95x = 2,078,479.80 × 586,720.25
  4. Step 4: Simplify right side
    1,386,538.95x = 1,219,486,177,483.55
  5. Step 5: Solve for x
    x = 1,219,486,177,483.55/1,386,538.95
  6. Step 6: Final answer
    x = 879,518.15

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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.