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Finding the Fourth Proportional to 779,624.81, 1,075,870.88 and 435,465.63

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Solution

The fourth proportional to 779,624.81, 1,075,870.88 and 435,465.63 is: 600,936.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,624.81 : 1,075,870.88 = 435,465.63 : x
  2. Step 2: Convert to fraction form
    779,624.81/1,075,870.88 = 435,465.63/x
  3. Step 3: Cross multiply
    779,624.81x = 1,075,870.88 × 435,465.63
  4. Step 4: Simplify right side
    779,624.81x = 468,504,788,380.53
  5. Step 5: Solve for x
    x = 468,504,788,380.53/779,624.81
  6. Step 6: Final answer
    x = 600,936.23

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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.