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Finding the Fourth Proportional to 610,419.60, 915,629.40 and 510,692.40

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Solution

The fourth proportional to 610,419.60, 915,629.40 and 510,692.40 is: 766,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,419.60 : 915,629.40 = 510,692.40 : x
  2. Step 2: Convert to fraction form
    610,419.60/915,629.40 = 510,692.40/x
  3. Step 3: Cross multiply
    610,419.60x = 915,629.40 × 510,692.40
  4. Step 4: Simplify right side
    610,419.60x = 467,604,975,796.56
  5. Step 5: Solve for x
    x = 467,604,975,796.56/610,419.60
  6. Step 6: Final answer
    x = 766,038.60

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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.