Home / 1,547,355.60-2,321,033.40-425,424.60

Finding the Fourth Proportional to 1,547,355.60, 2,321,033.40 and 425,424.60

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Solution

The fourth proportional to 1,547,355.60, 2,321,033.40 and 425,424.60 is: 638,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547,355.60 : 2,321,033.40 = 425,424.60 : x
  2. Step 2: Convert to fraction form
    1,547,355.60/2,321,033.40 = 425,424.60/x
  3. Step 3: Cross multiply
    1,547,355.60x = 2,321,033.40 × 425,424.60
  4. Step 4: Simplify right side
    1,547,355.60x = 987,424,705,781.64
  5. Step 5: Solve for x
    x = 987,424,705,781.64/1,547,355.60
  6. Step 6: Final answer
    x = 638,136.90

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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.