Home / 672,005.80-1,006,842.30-630,015.40

Finding the Fourth Proportional to 672,005.80, 1,006,842.30 and 630,015.40

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Solution

The fourth proportional to 672,005.80, 1,006,842.30 and 630,015.40 is: 943,929.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,005.80 : 1,006,842.30 = 630,015.40 : x
  2. Step 2: Convert to fraction form
    672,005.80/1,006,842.30 = 630,015.40/x
  3. Step 3: Cross multiply
    672,005.80x = 1,006,842.30 × 630,015.40
  4. Step 4: Simplify right side
    672,005.80x = 634,326,154,371.42
  5. Step 5: Solve for x
    x = 634,326,154,371.42/672,005.80
  6. Step 6: Final answer
    x = 943,929.58

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1.5x scale

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.