Home / 1,178,656.90-1,768,114.95-430,864.90

Finding the Fourth Proportional to 1,178,656.90, 1,768,114.95 and 430,864.90

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Solution

The fourth proportional to 1,178,656.90, 1,768,114.95 and 430,864.90 is: 646,344.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,656.90 : 1,768,114.95 = 430,864.90 : x
  2. Step 2: Convert to fraction form
    1,178,656.90/1,768,114.95 = 430,864.90/x
  3. Step 3: Cross multiply
    1,178,656.90x = 1,768,114.95 × 430,864.90
  4. Step 4: Simplify right side
    1,178,656.90x = 761,818,671,120.26
  5. Step 5: Solve for x
    x = 761,818,671,120.26/1,178,656.90
  6. Step 6: Final answer
    x = 646,344.73

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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.