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Finding the Fourth Proportional to 717,437.63, 990,133.79 and 535,834.23

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Solution

The fourth proportional to 717,437.63, 990,133.79 and 535,834.23 is: 739,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,437.63 : 990,133.79 = 535,834.23 : x
  2. Step 2: Convert to fraction form
    717,437.63/990,133.79 = 535,834.23/x
  3. Step 3: Cross multiply
    717,437.63x = 990,133.79 × 535,834.23
  4. Step 4: Simplify right side
    717,437.63x = 530,547,574,282.46
  5. Step 5: Solve for x
    x = 530,547,574,282.46/717,437.63
  6. Step 6: Final answer
    x = 739,503.42

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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.