Home / 430,897.39-645,130.90-228,034

Finding the Fourth Proportional to 430,897.39, 645,130.90 and 228,034

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Solution

The fourth proportional to 430,897.39, 645,130.90 and 228,034 is: 341,407.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,897.39 : 645,130.90 = 228,034 : x
  2. Step 2: Convert to fraction form
    430,897.39/645,130.90 = 228,034/x
  3. Step 3: Cross multiply
    430,897.39x = 645,130.90 × 228,034
  4. Step 4: Simplify right side
    430,897.39x = 147,111,779,650.60
  5. Step 5: Solve for x
    x = 147,111,779,650.60/430,897.39
  6. Step 6: Final answer
    x = 341,407.92

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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.