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Finding the Fourth Proportional to 723,051.36, 997,870.59 and 400,862.52

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Solution

The fourth proportional to 723,051.36, 997,870.59 and 400,862.52 is: 553,223.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,051.36 : 997,870.59 = 400,862.52 : x
  2. Step 2: Convert to fraction form
    723,051.36/997,870.59 = 400,862.52/x
  3. Step 3: Cross multiply
    723,051.36x = 997,870.59 × 400,862.52
  4. Step 4: Simplify right side
    723,051.36x = 400,008,919,341.29
  5. Step 5: Solve for x
    x = 400,008,919,341.29/723,051.36
  6. Step 6: Final answer
    x = 553,223.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.