Home / 1,219,041.86-1,828,683.02-420,218.24

Finding the Fourth Proportional to 1,219,041.86, 1,828,683.02 and 420,218.24

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Solution

The fourth proportional to 1,219,041.86, 1,828,683.02 and 420,218.24 is: 630,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,041.86 : 1,828,683.02 = 420,218.24 : x
  2. Step 2: Convert to fraction form
    1,219,041.86/1,828,683.02 = 420,218.24/x
  3. Step 3: Cross multiply
    1,219,041.86x = 1,828,683.02 × 420,218.24
  4. Step 4: Simplify right side
    1,219,041.86x = 768,445,960,182.29
  5. Step 5: Solve for x
    x = 768,445,960,182.29/1,219,041.86
  6. Step 6: Final answer
    x = 630,368.80

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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.