Home / 739,721,250.60-1,020,779,049.78-405,195,256.86

Finding the Fourth Proportional to 739,721,250.60, 1,020,779,049.78 and 405,195,256.86

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Solution

The fourth proportional to 739,721,250.60, 1,020,779,049.78 and 405,195,256.86 is: 559,149,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,721,250.60 : 1,020,779,049.78 = 405,195,256.86 : x
  2. Step 2: Convert to fraction form
    739,721,250.60/1,020,779,049.78 = 405,195,256.86/x
  3. Step 3: Cross multiply
    739,721,250.60x = 1,020,779,049.78 × 405,195,256.86
  4. Step 4: Simplify right side
    739,721,250.60x = 413,614,829,272,913,856
  5. Step 5: Solve for x
    x = 413,614,829,272,913,856/739,721,250.60
  6. Step 6: Final answer
    x = 559,149,583.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.