Home / 876,870.30-1,315,305.45-577,688.70

Finding the Fourth Proportional to 876,870.30, 1,315,305.45 and 577,688.70

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Solution

The fourth proportional to 876,870.30, 1,315,305.45 and 577,688.70 is: 866,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,870.30 : 1,315,305.45 = 577,688.70 : x
  2. Step 2: Convert to fraction form
    876,870.30/1,315,305.45 = 577,688.70/x
  3. Step 3: Cross multiply
    876,870.30x = 1,315,305.45 × 577,688.70
  4. Step 4: Simplify right side
    876,870.30x = 759,837,095,513.42
  5. Step 5: Solve for x
    x = 759,837,095,513.42/876,870.30
  6. Step 6: Final answer
    x = 866,533.05

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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.