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Finding the Fourth Proportional to 909,461, 1,255,039.30 and 501,600.76

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Solution

The fourth proportional to 909,461, 1,255,039.30 and 501,600.76 is: 692,199.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,461 : 1,255,039.30 = 501,600.76 : x
  2. Step 2: Convert to fraction form
    909,461/1,255,039.30 = 501,600.76/x
  3. Step 3: Cross multiply
    909,461x = 1,255,039.30 × 501,600.76
  4. Step 4: Simplify right side
    909,461x = 629,528,666,709.87
  5. Step 5: Solve for x
    x = 629,528,666,709.87/909,461
  6. Step 6: Final answer
    x = 692,199.74

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1.5x scale

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.