Home / 927,125.80-1,390,688.70-716,914.60

Finding the Fourth Proportional to 927,125.80, 1,390,688.70 and 716,914.60

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Solution

The fourth proportional to 927,125.80, 1,390,688.70 and 716,914.60 is: 1,075,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,125.80 : 1,390,688.70 = 716,914.60 : x
  2. Step 2: Convert to fraction form
    927,125.80/1,390,688.70 = 716,914.60/x
  3. Step 3: Cross multiply
    927,125.80x = 1,390,688.70 × 716,914.60
  4. Step 4: Simplify right side
    927,125.80x = 997,005,033,085.02
  5. Step 5: Solve for x
    x = 997,005,033,085.02/927,125.80
  6. Step 6: Final answer
    x = 1,075,371.90

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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.