Home / 679,012.07-1,022,580.28-618,478.64

Finding the Fourth Proportional to 679,012.07, 1,022,580.28 and 618,478.64

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Solution

The fourth proportional to 679,012.07, 1,022,580.28 and 618,478.64 is: 931,417.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,012.07 : 1,022,580.28 = 618,478.64 : x
  2. Step 2: Convert to fraction form
    679,012.07/1,022,580.28 = 618,478.64/x
  3. Step 3: Cross multiply
    679,012.07x = 1,022,580.28 × 618,478.64
  4. Step 4: Simplify right side
    679,012.07x = 632,444,057,772.83
  5. Step 5: Solve for x
    x = 632,444,057,772.83/679,012.07
  6. Step 6: Final answer
    x = 931,417.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.