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Finding the Fourth Proportional to 707,924.79, 977,298.34 and 479,688.25

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Solution

The fourth proportional to 707,924.79, 977,298.34 and 479,688.25 is: 662,215.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,924.79 : 977,298.34 = 479,688.25 : x
  2. Step 2: Convert to fraction form
    707,924.79/977,298.34 = 479,688.25/x
  3. Step 3: Cross multiply
    707,924.79x = 977,298.34 × 479,688.25
  4. Step 4: Simplify right side
    707,924.79x = 468,798,530,442.51
  5. Step 5: Solve for x
    x = 468,798,530,442.51/707,924.79
  6. Step 6: Final answer
    x = 662,215.16

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Double scale
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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.