Finding the Fourth Proportional to 745,675.13, 1,029,038.65 and 423,392.13
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Solution
The fourth proportional to 745,675.13, 1,029,038.65 and 423,392.13 is: 584,285.09
Step by Step Solution
- Step 1: Write the proportion equation
745,675.13 : 1,029,038.65 = 423,392.13 : x - Step 2: Convert to fraction form
745,675.13/1,029,038.65 = 423,392.13/x - Step 3: Cross multiply
745,675.13x = 1,029,038.65 × 423,392.13 - Step 4: Simplify right side
745,675.13x = 435,686,864,817.34 - Step 5: Solve for x
x = 435,686,864,817.34/745,675.13 - Step 6: Final answer
x = 584,285.09
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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.