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Finding the Fourth Proportional to 720,328.70, 1,083,117.45 and 604,855.10

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Solution

The fourth proportional to 720,328.70, 1,083,117.45 and 604,855.10 is: 909,486.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,328.70 : 1,083,117.45 = 604,855.10 : x
  2. Step 2: Convert to fraction form
    720,328.70/1,083,117.45 = 604,855.10/x
  3. Step 3: Cross multiply
    720,328.70x = 1,083,117.45 × 604,855.10
  4. Step 4: Simplify right side
    720,328.70x = 655,129,113,531.50
  5. Step 5: Solve for x
    x = 655,129,113,531.50/720,328.70
  6. Step 6: Final answer
    x = 909,486.34

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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.