Home / 1,657,507-2,486,646.26-520,206.86

Finding the Fourth Proportional to 1,657,507, 2,486,646.26 and 520,206.86

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Solution

The fourth proportional to 1,657,507, 2,486,646.26 and 520,206.86 is: 780,431.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,507 : 2,486,646.26 = 520,206.86 : x
  2. Step 2: Convert to fraction form
    1,657,507/2,486,646.26 = 520,206.86/x
  3. Step 3: Cross multiply
    1,657,507x = 2,486,646.26 × 520,206.86
  4. Step 4: Simplify right side
    1,657,507x = 1,293,570,442,845.34
  5. Step 5: Solve for x
    x = 1,293,570,442,845.34/1,657,507
  6. Step 6: Final answer
    x = 780,431.36

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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.