Finding the Fourth Proportional to 745,535.18, 1,118,339.69 and 213,134.65
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Solution
The fourth proportional to 745,535.18, 1,118,339.69 and 213,134.65 is: 319,712.52
Step by Step Solution
- Step 1: Write the proportion equation
745,535.18 : 1,118,339.69 = 213,134.65 : x - Step 2: Convert to fraction form
745,535.18/1,118,339.69 = 213,134.65/x - Step 3: Cross multiply
745,535.18x = 1,118,339.69 × 213,134.65 - Step 4: Simplify right side
745,535.18x = 238,356,934,547.74 - Step 5: Solve for x
x = 238,356,934,547.74/745,535.18 - Step 6: Final answer
x = 319,712.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.