Home / 830,015.30-1,244,038.80-745,378.40

Finding the Fourth Proportional to 830,015.30, 1,244,038.80 and 745,378.40

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Solution

The fourth proportional to 830,015.30, 1,244,038.80 and 745,378.40 is: 1,117,183.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,015.30 : 1,244,038.80 = 745,378.40 : x
  2. Step 2: Convert to fraction form
    830,015.30/1,244,038.80 = 745,378.40/x
  3. Step 3: Cross multiply
    830,015.30x = 1,244,038.80 × 745,378.40
  4. Step 4: Simplify right side
    830,015.30x = 927,279,650,281.92
  5. Step 5: Solve for x
    x = 927,279,650,281.92/830,015.30
  6. Step 6: Final answer
    x = 1,117,183.80

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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.