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Finding the Fourth Proportional to 554,226.52, 830,136.78 and 340,345.36

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Solution

The fourth proportional to 554,226.52, 830,136.78 and 340,345.36 is: 509,779.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,226.52 : 830,136.78 = 340,345.36 : x
  2. Step 2: Convert to fraction form
    554,226.52/830,136.78 = 340,345.36/x
  3. Step 3: Cross multiply
    554,226.52x = 830,136.78 × 340,345.36
  4. Step 4: Simplify right side
    554,226.52x = 282,533,201,238.34
  5. Step 5: Solve for x
    x = 282,533,201,238.34/554,226.52
  6. Step 6: Final answer
    x = 509,779.29

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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.