Home / 710,856.37-1,061,744.93-643,283.65

Finding the Fourth Proportional to 710,856.37, 1,061,744.93 and 643,283.65

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Solution

The fourth proportional to 710,856.37, 1,061,744.93 and 643,283.65 is: 960,817.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,856.37 : 1,061,744.93 = 643,283.65 : x
  2. Step 2: Convert to fraction form
    710,856.37/1,061,744.93 = 643,283.65/x
  3. Step 3: Cross multiply
    710,856.37x = 1,061,744.93 × 643,283.65
  4. Step 4: Simplify right side
    710,856.37x = 683,003,153,939.40
  5. Step 5: Solve for x
    x = 683,003,153,939.40/710,856.37
  6. Step 6: Final answer
    x = 960,817.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.