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Finding the Fourth Proportional to 708,552.51, 977,753.46 and 398,501.52

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Solution

The fourth proportional to 708,552.51, 977,753.46 and 398,501.52 is: 549,904.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,552.51 : 977,753.46 = 398,501.52 : x
  2. Step 2: Convert to fraction form
    708,552.51/977,753.46 = 398,501.52/x
  3. Step 3: Cross multiply
    708,552.51x = 977,753.46 × 398,501.52
  4. Step 4: Simplify right side
    708,552.51x = 389,636,239,995.26
  5. Step 5: Solve for x
    x = 389,636,239,995.26/708,552.51
  6. Step 6: Final answer
    x = 549,904.54

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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.