Home / 771,510.40-1,160,030.40-649,859.20

Finding the Fourth Proportional to 771,510.40, 1,160,030.40 and 649,859.20

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Solution

The fourth proportional to 771,510.40, 1,160,030.40 and 649,859.20 is: 977,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,510.40 : 1,160,030.40 = 649,859.20 : x
  2. Step 2: Convert to fraction form
    771,510.40/1,160,030.40 = 649,859.20/x
  3. Step 3: Cross multiply
    771,510.40x = 1,160,030.40 × 649,859.20
  4. Step 4: Simplify right side
    771,510.40x = 753,856,427,719.68
  5. Step 5: Solve for x
    x = 753,856,427,719.68/771,510.40
  6. Step 6: Final answer
    x = 977,117.65

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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.