Home / 779,853.02-1,169,779.47-425,165.30

Finding the Fourth Proportional to 779,853.02, 1,169,779.47 and 425,165.30

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Solution

The fourth proportional to 779,853.02, 1,169,779.47 and 425,165.30 is: 637,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,853.02 : 1,169,779.47 = 425,165.30 : x
  2. Step 2: Convert to fraction form
    779,853.02/1,169,779.47 = 425,165.30/x
  3. Step 3: Cross multiply
    779,853.02x = 1,169,779.47 × 425,165.30
  4. Step 4: Simplify right side
    779,853.02x = 497,349,639,296.39
  5. Step 5: Solve for x
    x = 497,349,639,296.39/779,853.02
  6. Step 6: Final answer
    x = 637,747.92

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Double scale
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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.