Home / 868,088.90-1,302,133.35-553,160.90

Finding the Fourth Proportional to 868,088.90, 1,302,133.35 and 553,160.90

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Solution

The fourth proportional to 868,088.90, 1,302,133.35 and 553,160.90 is: 829,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,088.90 : 1,302,133.35 = 553,160.90 : x
  2. Step 2: Convert to fraction form
    868,088.90/1,302,133.35 = 553,160.90/x
  3. Step 3: Cross multiply
    868,088.90x = 1,302,133.35 × 553,160.90
  4. Step 4: Simplify right side
    868,088.90x = 720,289,255,806.02
  5. Step 5: Solve for x
    x = 720,289,255,806.02/868,088.90
  6. Step 6: Final answer
    x = 829,741.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.