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Finding the Fourth Proportional to 1,326,566.06, 1,830,726.05 and 745,971.89

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Solution

The fourth proportional to 1,326,566.06, 1,830,726.05 and 745,971.89 is: 1,029,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,566.06 : 1,830,726.05 = 745,971.89 : x
  2. Step 2: Convert to fraction form
    1,326,566.06/1,830,726.05 = 745,971.89/x
  3. Step 3: Cross multiply
    1,326,566.06x = 1,830,726.05 × 745,971.89
  4. Step 4: Simplify right side
    1,326,566.06x = 1,365,670,172,437.69
  5. Step 5: Solve for x
    x = 1,365,670,172,437.69/1,326,566.06
  6. Step 6: Final answer
    x = 1,029,477.70

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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.