Home / 1,572,921-2,359,390.14-390,969

Finding the Fourth Proportional to 1,572,921, 2,359,390.14 and 390,969

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Solution

The fourth proportional to 1,572,921, 2,359,390.14 and 390,969 is: 586,455.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,921 : 2,359,390.14 = 390,969 : x
  2. Step 2: Convert to fraction form
    1,572,921/2,359,390.14 = 390,969/x
  3. Step 3: Cross multiply
    1,572,921x = 2,359,390.14 × 390,969
  4. Step 4: Simplify right side
    1,572,921x = 922,448,403,645.66
  5. Step 5: Solve for x
    x = 922,448,403,645.66/1,572,921
  6. Step 6: Final answer
    x = 586,455.65

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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.