Home / 931,510.80-1,397,266.20-648,075.60

Finding the Fourth Proportional to 931,510.80, 1,397,266.20 and 648,075.60

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Solution

The fourth proportional to 931,510.80, 1,397,266.20 and 648,075.60 is: 972,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,510.80 : 1,397,266.20 = 648,075.60 : x
  2. Step 2: Convert to fraction form
    931,510.80/1,397,266.20 = 648,075.60/x
  3. Step 3: Cross multiply
    931,510.80x = 1,397,266.20 × 648,075.60
  4. Step 4: Simplify right side
    931,510.80x = 905,534,130,924.72
  5. Step 5: Solve for x
    x = 905,534,130,924.72/931,510.80
  6. Step 6: Final answer
    x = 972,113.40

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Double scale
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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.