Home / 977,439.40-1,465,721.70-444,686.20

Finding the Fourth Proportional to 977,439.40, 1,465,721.70 and 444,686.20

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Solution

The fourth proportional to 977,439.40, 1,465,721.70 and 444,686.20 is: 666,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,439.40 : 1,465,721.70 = 444,686.20 : x
  2. Step 2: Convert to fraction form
    977,439.40/1,465,721.70 = 444,686.20/x
  3. Step 3: Cross multiply
    977,439.40x = 1,465,721.70 × 444,686.20
  4. Step 4: Simplify right side
    977,439.40x = 651,786,213,030.54
  5. Step 5: Solve for x
    x = 651,786,213,030.54/977,439.40
  6. Step 6: Final answer
    x = 666,830.30

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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.