Finding the Fourth Proportional to 1,913,058.08, 2,640,139.55 and 1,053,618.11
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Solution
The fourth proportional to 1,913,058.08, 2,640,139.55 and 1,053,618.11 is: 1,454,058.75
Step by Step Solution
- Step 1: Write the proportion equation
1,913,058.08 : 2,640,139.55 = 1,053,618.11 : x - Step 2: Convert to fraction form
1,913,058.08/2,640,139.55 = 1,053,618.11/x - Step 3: Cross multiply
1,913,058.08x = 2,640,139.55 × 1,053,618.11 - Step 4: Simplify right side
1,913,058.08x = 2,781,698,842,807.25 - Step 5: Solve for x
x = 2,781,698,842,807.25/1,913,058.08 - Step 6: Final answer
x = 1,454,058.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.