Home / 778,657.98-1,074,296.40-434,438.10

Finding the Fourth Proportional to 778,657.98, 1,074,296.40 and 434,438.10

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Solution

The fourth proportional to 778,657.98, 1,074,296.40 and 434,438.10 is: 599,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,657.98 : 1,074,296.40 = 434,438.10 : x
  2. Step 2: Convert to fraction form
    778,657.98/1,074,296.40 = 434,438.10/x
  3. Step 3: Cross multiply
    778,657.98x = 1,074,296.40 × 434,438.10
  4. Step 4: Simplify right side
    778,657.98x = 466,715,286,852.84
  5. Step 5: Solve for x
    x = 466,715,286,852.84/778,657.98
  6. Step 6: Final answer
    x = 599,384.20

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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.