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Finding the Fourth Proportional to 877,560, 1,211,032.80 and 475,152

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Solution

The fourth proportional to 877,560, 1,211,032.80 and 475,152 is: 655,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,560 : 1,211,032.80 = 475,152 : x
  2. Step 2: Convert to fraction form
    877,560/1,211,032.80 = 475,152/x
  3. Step 3: Cross multiply
    877,560x = 1,211,032.80 × 475,152
  4. Step 4: Simplify right side
    877,560x = 575,424,656,985.60
  5. Step 5: Solve for x
    x = 575,424,656,985.60/877,560
  6. Step 6: Final answer
    x = 655,709.76

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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.