Home / 1,186,145.20-1,779,448.20-512,225.20

Finding the Fourth Proportional to 1,186,145.20, 1,779,448.20 and 512,225.20

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Solution

The fourth proportional to 1,186,145.20, 1,779,448.20 and 512,225.20 is: 768,437.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,145.20 : 1,779,448.20 = 512,225.20 : x
  2. Step 2: Convert to fraction form
    1,186,145.20/1,779,448.20 = 512,225.20/x
  3. Step 3: Cross multiply
    1,186,145.20x = 1,779,448.20 × 512,225.20
  4. Step 4: Simplify right side
    1,186,145.20x = 911,478,210,134.64
  5. Step 5: Solve for x
    x = 911,478,210,134.64/1,186,145.20
  6. Step 6: Final answer
    x = 768,437.30

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1.5x scale

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.