Finding the Fourth Proportional to 1,122,578.80, 1,547,338.85 and 877,134.42
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Solution
The fourth proportional to 1,122,578.80, 1,547,338.85 and 877,134.42 is: 1,209,023.52
Step by Step Solution
- Step 1: Write the proportion equation
1,122,578.80 : 1,547,338.85 = 877,134.42 : x - Step 2: Convert to fraction form
1,122,578.80/1,547,338.85 = 877,134.42/x - Step 3: Cross multiply
1,122,578.80x = 1,547,338.85 × 877,134.42 - Step 4: Simplify right side
1,122,578.80x = 1,357,224,163,641.80 - Step 5: Solve for x
x = 1,357,224,163,641.80/1,122,578.80 - Step 6: Final answer
x = 1,209,023.52
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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.