Home / 872,585.40-1,308,878.10-473,417.40

Finding the Fourth Proportional to 872,585.40, 1,308,878.10 and 473,417.40

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Solution

The fourth proportional to 872,585.40, 1,308,878.10 and 473,417.40 is: 710,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,585.40 : 1,308,878.10 = 473,417.40 : x
  2. Step 2: Convert to fraction form
    872,585.40/1,308,878.10 = 473,417.40/x
  3. Step 3: Cross multiply
    872,585.40x = 1,308,878.10 × 473,417.40
  4. Step 4: Simplify right side
    872,585.40x = 619,645,667,018.94
  5. Step 5: Solve for x
    x = 619,645,667,018.94/872,585.40
  6. Step 6: Final answer
    x = 710,126.10

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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.