Finding the Fourth Proportional to 1,029,565.49, 1,420,319.81 and 647,802.77
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Solution
The fourth proportional to 1,029,565.49, 1,420,319.81 and 647,802.77 is: 893,665.45
Step by Step Solution
- Step 1: Write the proportion equation
1,029,565.49 : 1,420,319.81 = 647,802.77 : x - Step 2: Convert to fraction form
1,029,565.49/1,420,319.81 = 647,802.77/x - Step 3: Cross multiply
1,029,565.49x = 1,420,319.81 × 647,802.77 - Step 4: Simplify right side
1,029,565.49x = 920,087,101,721.78 - Step 5: Solve for x
x = 920,087,101,721.78/1,029,565.49 - Step 6: Final answer
x = 893,665.45
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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.