Home / 997,538.40-1,495,870.20-398,300.40

Finding the Fourth Proportional to 997,538.40, 1,495,870.20 and 398,300.40

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Solution

The fourth proportional to 997,538.40, 1,495,870.20 and 398,300.40 is: 597,275.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,538.40 : 1,495,870.20 = 398,300.40 : x
  2. Step 2: Convert to fraction form
    997,538.40/1,495,870.20 = 398,300.40/x
  3. Step 3: Cross multiply
    997,538.40x = 1,495,870.20 × 398,300.40
  4. Step 4: Simplify right side
    997,538.40x = 595,805,699,008.08
  5. Step 5: Solve for x
    x = 595,805,699,008.08/997,538.40
  6. Step 6: Final answer
    x = 597,275.95

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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.