Home / 931,510.40-1,397,265.60-648,075.20

Finding the Fourth Proportional to 931,510.40, 1,397,265.60 and 648,075.20

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Solution

The fourth proportional to 931,510.40, 1,397,265.60 and 648,075.20 is: 972,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,510.40 : 1,397,265.60 = 648,075.20 : x
  2. Step 2: Convert to fraction form
    931,510.40/1,397,265.60 = 648,075.20/x
  3. Step 3: Cross multiply
    931,510.40x = 1,397,265.60 × 648,075.20
  4. Step 4: Simplify right side
    931,510.40x = 905,533,183,173.12
  5. Step 5: Solve for x
    x = 905,533,183,173.12/931,510.40
  6. Step 6: Final answer
    x = 972,112.80

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Similar ratio
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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.