Home / 6,390,579-8,819,069.20-3,490,055.20

Finding the Fourth Proportional to 6,390,579, 8,819,069.20 and 3,490,055.20

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Solution

The fourth proportional to 6,390,579, 8,819,069.20 and 3,490,055.20 is: 4,816,314.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390,579 : 8,819,069.20 = 3,490,055.20 : x
  2. Step 2: Convert to fraction form
    6,390,579/8,819,069.20 = 3,490,055.20/x
  3. Step 3: Cross multiply
    6,390,579x = 8,819,069.20 × 3,490,055.20
  4. Step 4: Simplify right side
    6,390,579x = 30,779,038,320,619.84
  5. Step 5: Solve for x
    x = 30,779,038,320,619.84/6,390,579
  6. Step 6: Final answer
    x = 4,816,314.50

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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.