Finding the Fourth Proportional to 1,257,368.29, 1,735,206.45 and 890,502.67
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Solution
The fourth proportional to 1,257,368.29, 1,735,206.45 and 890,502.67 is: 1,228,920.75
Step by Step Solution
- Step 1: Write the proportion equation
1,257,368.29 : 1,735,206.45 = 890,502.67 : x - Step 2: Convert to fraction form
1,257,368.29/1,735,206.45 = 890,502.67/x - Step 3: Cross multiply
1,257,368.29x = 1,735,206.45 × 890,502.67 - Step 4: Simplify right side
1,257,368.29x = 1,545,205,976,726.22 - Step 5: Solve for x
x = 1,545,205,976,726.22/1,257,368.29 - Step 6: Final answer
x = 1,228,920.75
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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.