Home / 989,783.79-1,484,675.14-358,696.59

Finding the Fourth Proportional to 989,783.79, 1,484,675.14 and 358,696.59

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Solution

The fourth proportional to 989,783.79, 1,484,675.14 and 358,696.59 is: 538,044.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,783.79 : 1,484,675.14 = 358,696.59 : x
  2. Step 2: Convert to fraction form
    989,783.79/1,484,675.14 = 358,696.59/x
  3. Step 3: Cross multiply
    989,783.79x = 1,484,675.14 × 358,696.59
  4. Step 4: Simplify right side
    989,783.79x = 532,547,909,975.77
  5. Step 5: Solve for x
    x = 532,547,909,975.77/989,783.79
  6. Step 6: Final answer
    x = 538,044.69

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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.