Home / 1,386,210.60-2,079,315.90-439,655.40

Finding the Fourth Proportional to 1,386,210.60, 2,079,315.90 and 439,655.40

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Solution

The fourth proportional to 1,386,210.60, 2,079,315.90 and 439,655.40 is: 659,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,210.60 : 2,079,315.90 = 439,655.40 : x
  2. Step 2: Convert to fraction form
    1,386,210.60/2,079,315.90 = 439,655.40/x
  3. Step 3: Cross multiply
    1,386,210.60x = 2,079,315.90 × 439,655.40
  4. Step 4: Simplify right side
    1,386,210.60x = 914,182,463,740.86
  5. Step 5: Solve for x
    x = 914,182,463,740.86/1,386,210.60
  6. Step 6: Final answer
    x = 659,483.10

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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.