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Finding the Fourth Proportional to 877,562, 1,211,035.56 and 475,154

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Solution

The fourth proportional to 877,562, 1,211,035.56 and 475,154 is: 655,712.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,562 : 1,211,035.56 = 475,154 : x
  2. Step 2: Convert to fraction form
    877,562/1,211,035.56 = 475,154/x
  3. Step 3: Cross multiply
    877,562x = 1,211,035.56 × 475,154
  4. Step 4: Simplify right side
    877,562x = 575,428,390,476.24
  5. Step 5: Solve for x
    x = 575,428,390,476.24/877,562
  6. Step 6: Final answer
    x = 655,712.52

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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.