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Finding the Fourth Proportional to 877,510.80, 1,315,610.10 and 371,657.70

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Solution

The fourth proportional to 877,510.80, 1,315,610.10 and 371,657.70 is: 557,208.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,510.80 : 1,315,610.10 = 371,657.70 : x
  2. Step 2: Convert to fraction form
    877,510.80/1,315,610.10 = 371,657.70/x
  3. Step 3: Cross multiply
    877,510.80x = 1,315,610.10 × 371,657.70
  4. Step 4: Simplify right side
    877,510.80x = 488,956,623,862.77
  5. Step 5: Solve for x
    x = 488,956,623,862.77/877,510.80
  6. Step 6: Final answer
    x = 557,208.67

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1.5x scale

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.